List of United States Navy ratings - AbsoluteAstronomy.com

United States Navy
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

ratings are general occupation

Job (role)

A job is a regular activity performed in exchange for payment. A person usually begins a job by becoming an employee, volunteering, or starting a business. The duration of a job may range from an hour to a lifetime . If a person is trained for a certain type of job, they may have a profession...

s that consist of specific skills and abilities. Each naval rating

Naval rating

A Naval Rating is an enlisted member of a country's Navy, subordinate to Warrant Officers and Officers hence not conferred by commission or warrant...

has its own specialty badge, which is worn on the left sleeve of the uniform by each enlisted

Enlisted rank

An enlisted rank is, in most Militaries, any rank below a commissioned officer or warrant officer. The term can also be inclusive of non-commissioned officers...

person in that particular field. Working uniforms, such as camouflage

Military camouflage

Military camouflage is one of many means of deceiving an enemy. In practice, it is the application of colour and materials to battledress and military equipment to conceal them from visual observation. The French slang word camouflage came into common English usage during World War I when the...

Battle Dress Uniform

The Battle Dress Uniform were the fatigues that the armed forces of the United States used as their standard uniform for combat situations from September 1981 to April 2005. Since then, it has been replaced in every branch of the U.S. military. Only the U.S. Navy currently authorizes wear of the...

s, utilities, coveralls, and Naval Working Uniform, bear generic rate designators that exclude the rating symbol. Just as an officer

Officer (armed forces)

An officer is a member of an armed force or uniformed service who holds a position of authority. Commissioned officers derive authority directly from a sovereign power and, as such, hold a commission charging them with the duties and responsibilities of a specific office or position...

has rank, not a rate, an officer's occupation (if drawn more narrowly than an officer of the line) is classified according to designators and professional staff corps.

Ratings should not be confused with rates, which describe the Navy's

United States Navy

The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

enlisted pay-grades. Enlisted sailors are referred to by their rating and rate. For example, if someone's rate is Petty Officer 2nd Class and his rating is Boatswain's Mate, then combining the two—Boatswain's Mate 2nd Class (BM2)—defines both rate and rating in formal address or epistolary salutation.

History

The U.S. Navy's enlisted occupational system is a product of more than 200 years of Naval evolution. The Navy of the United Colonies of the 1775

Thirteen Colonies

The Thirteen Colonies were English and later British colonies established on the Atlantic coast of North America between 1607 and 1733. They declared their independence in the American Revolution and formed the United States of America...

era offered only a few different jobs above the ordinary level of seaman. These included Boatswain's Mate, Quartermaster

Quartermaster

Quartermaster refers to two different military occupations depending on if the assigned unit is land based or naval.In land armies, especially US units, it is a term referring to either an individual soldier or a unit who specializes in distributing supplies and provisions to troops. The senior...

, Gunner's Mate

Gunner's Mate

The United States Navy occupational rating of gunner's mate also known as gunsmens mate is a designation given by the Bureau of Naval Personnel to enlisted sailors who either satisfactorily complete initial Gunner's Mate "A" school training, or who "strike" for the rating as a deck seaman by...

, Master-at-Arms

Master-at-arms

A master-at-arms may be a naval rating responsible for discipline and law enforcement, an army officer responsible for physical training, or a member of the crew of a merchant ship responsible for security and law enforcement.-Royal Navy:The master-at-arms is a ship's senior rating, comparable in...

, Cook

Cooking

Cooking is the process of preparing food by use of heat. Cooking techniques and ingredients vary widely across the world, reflecting unique environmental, economic, and cultural traditions. Cooks themselves also vary widely in skill and training...

, Armorer

Armorer

An armourer or armorer is a member of a military or police force who maintains and repairs small arms and weapons systems, with some duties resembling those of a civilian gunsmith....

, and Coxswain

Coxswain

The coxswain is the person in charge of a boat, particularly its navigation and steering. The etymology of the word gives us a literal meaning of "boat servant" since it comes from cox, a coxboat or other small vessel kept aboard a ship, and swain, which can be rendered as boy, in authority. ...

. These were titles of the jobs that individuals were actually performing and became the basis for petty officers

Petty Officer

A petty officer is a non-commissioned officer in many navies and is given the NATO rank denotion OR-6. They are equal in rank to sergeant, British Army and Royal Air Force. A Petty Officer is superior in rank to Leading Rate and subordinate to Chief Petty Officer, in the case of the British Armed...

and ratings. During this time, ship crews were taken from civilian life and enlisted for only one cruise, thus making the job at hand rather than career possibilities the primary consideration. It was not until 1841 that distinguishing marks for a rating were prescribed in the Regulations of the Secretary of the Navy and specialty marks were not added to enlisted men’s uniforms until 1866. The marks consisted of the tools or instruments used in each rating's specific duty. The Master-at-Arms, the police officer of a ship, wore the star of authority and the Gunner’s Mate wore two crossed cannons. Currently, all specialty marks for new ratings are approved by the Permanent Naval Uniform Board which is a division of the Bureau of Naval Personnel.

As the Navy’s rating system has changed so has the Navy. The first steamship, mine

Naval mine

A naval mine is a self-contained explosive device placed in water to destroy surface ships or submarines. Unlike depth charges, mines are deposited and left to wait until they are triggered by the approach of, or contact with, an enemy vessel...

, radar

Radar

Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...

, torpedo

Torpedo

The modern torpedo is a self-propelled missile weapon with an explosive warhead, launched above or below the water surface, propelled underwater towards a target, and designed to detonate either on contact with it or in proximity to it.The term torpedo was originally employed for...

, aircraft carrier

Aircraft carrier

An aircraft carrier is a warship designed with a primary mission of deploying and recovering aircraft, acting as a seagoing airbase. Aircraft carriers thus allow a naval force to project air power worldwide without having to depend on local bases for staging aircraft operations...

, and many other “firsts” all established a new era in the Navy, and each directly impacted the enlisted occupation structure. During World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

, the Navy also briefly maintained a rating of Specialist

Specialist (rank)

Specialist is one of the four junior enlisted ranks in the U.S. Army, just above Private First Class and equivalent in pay grade to Corporal. Unlike Corporals, Specialists are not considered junior non-commissioned officers...

, similar to the rank in the United States Army

United States Army

The United States Army is the main branch of the United States Armed Forces responsible for land-based military operations. It is the largest and oldest established branch of the U.S. military, and is one of seven U.S. uniformed services...

. The rating of Specialist was discontinued in 1948.

After more than 200 years of evolution, today’s Navy enlisted rating structure still plays a key role in career development, serves as a basis for training, detailing, advancement, and simply keeping tabs on several hundred thousand Navy Personnel.

Rating structure

The pay grades E-4

Petty Officer Third Class

U.S. NavyGood conductvariationU.S. NavyPetty officerthird classinsigniaPetty officer third class is the fourth enlisted rank in the U.S. Navy and U.S. Coast Guard, just above seaman and below petty officer second class, and is the lowest rank of non-commissioned officer, equivalent to a corporal in...

(Petty Officer Third Class

Petty Officer Third Class

) through E-9

Master Chief Petty Officer

- Master Chief Petty Officer :U.S. Coast GuardMaster ChiefPetty OfficerCap & Collar deviceU.S. Coast GuardMaster ChiefPetty OfficerinsigniaGood conductRating badgeMaster ChiefPetty OfficerCap & Collar Insignia...

(Master Chief Petty Officer

Master Chief Petty Officer

) fall within the rating structure. It is further broken down into four types of ratings and classifications:

General ratings, which consist of broad occupational fields such as Electronics Technician
Electronics Technician
Electronics Technician is a common enlisted occupation in many Militaries. Common duties for ETs include repair, calibration, and basic maintenance of most electronic equipment.-US Navy:...

, Machinist's Mate
Machinist's Mate
Machinist's Mate is a rating in the United States Navy's engineering community.- Description :According to the Bureau of Naval Personnel , the job of an MM is to "operate, maintain, and repair ship propulsion machinery, auxiliary equipment, and outside machinery, such as: steering engine,...

, or Machinery Repairman
Machinery Repairman
Machinery Repairman is a United States Navy occupational rating.Machinery Repairmen perform organizational and intermediate maintenance on assigned equipment and in support of other ships, requiring the skillful use of lathes, milling machines, boring mills, grinders, power hack saws, drill...

.
Service ratings, which are made up of sub categories of general ratings that require further specialized training and qualifications – Service ratings are established, changed, and removed depending on service requirements and changes in the way personnel are managed.
Navy Enlisted Classification
Navy Enlisted Classification
The Navy Enlisted Classification system supplements the rating designators for enlisted members of the United States Navy. A naval rating and NEC designator are similar to the Military Occupational Specialty designators used in the U.S. Army and U.S. Marine Corps and the Air Force Specialty Code ...

s (NEC), which are numerical codes attached to a specific rating and are frequently used to indicate specialized qualifications and Emergency ratings.
Emergency ratings, which are specific ratings that can be established in time of war and are distinguished by a letter of the alphabet enclosed in a diamond.

The word "rate" is used in two ways within the structure. First, rate is a paygrade. Enlisted navy personnel do not have rank, only naval officers. Second, rate is an abbreviation that contains both the rating and the paygrade abbreviations. For example, a Boatswain's Mate has the rating abbreviation BM, and if the person is a Petty Officer Second Class which is a "2" abbreviation, then the person's rate would be BM2 (BM is the rating and the 2 is Petty Officer Second Class paygrade E5). The paygrade abbreviation is always added right after the rating abbreviation. The rates (Paygrades) are as follows:

3 – Petty Officer Third Class (paygrade E4)
2 – Petty Officer Second Class (paygrade E5)
1 – Petty Officer First Class (paygrade E6)
C – Chief Petty Officer (paygrade E7)
CS – Senior Chief Petty Officer (paygrade E8)
CM – Master Chief Petty Officer (paygrade E9)

Paygrades E1 through E3 can also have a rating abbreviation preceding their paygrade symbol if they are graduates of Class "A" schools; have received the rating designation in a previous enlistment; are assigned to a billet in that specialty as a striker; have passed an advancement examination and not been selected for advancement for reasons of numeric limitations on advancements; or have been reduced in rate because of punishment. Examples: BMSR is a Boatswain's Mate Seaman Recruit (paygrade E1); MMFA is a Machinist's Mate Fireman Apprentice (paygrade E2); MRFN is a Machinery Repairman Fireman (paygrade E3).

Aviation

Insignia	General rating	Abbreviation	Service rating	Abbreviation
	Aviation Boatswain's Mate Aviation Boatswain's Mate Aviation Boatswain's Mate is a United States Navy occupational rating.-Aviation Boatswain's Mates:Aviation Boatswain's Mates operate, maintain, and perform organizational maintenance on catapults, arresting gear, barricades, and associated flightdeck launching and recovery equipment; operate and...

}
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |(Launching & Recovery)
(Fuels)
(Aircraft Handling)
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |ABE
ABF
ABH
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Aviation Boatswain's Mates are responsible for aircraft catapult

Aircraft catapult

An aircraft catapult is a device used to launch aircraft from ships—in particular aircraft carriers—as a form of assisted take off. It consists of a track built into the flight deck, below which is a large piston or shuttle that is attached through the track to the nose gear of the aircraft, or in...

s, arresting gear and barricades. They operate fuel

Fuel

Fuel is any material that stores energy that can later be extracted to perform mechanical work in a controlled manner. Most fuels used by humans undergo combustion, a redox reaction in which a combustible substance releases energy after it ignites and reacts with the oxygen in the air...

and lube oil

Oil

An oil is any substance that is liquid at ambient temperatures and does not mix with water but may mix with other oils and organic solvents. This general definition includes vegetable oils, volatile essential oils, petrochemical oils, and synthetic oils....

transfer systems, as well as direct aircraft on the flight deck

Flight deck

The flight deck of an aircraft carrier is the surface from which its aircraft take off and land, essentially a miniature airfield at sea. On smaller naval ships which do not have aviation as a primary mission, the landing area for helicopters and other VTOL aircraft is also referred to as the...

and in hangar bays before launch and after recovery. They use tow tractors to position planes and operate support equipment

Ground Support Equipment

Ground support equipment is the support equipment found at an airport, usually on the ramp, the servicing area by the terminal. This equipment is used to service the aircraft between flights. As its name implies, GSE is there to support the operations of aircraft on the ground...

| style="border: 1px solid #25185d;" | Air-Traffic Controller
Air Traffic Controller (US Navy)
Air Traffic Controller is a United States Navy occupational rating.-General Description:Navy Air Traffic Controllers perform duties similar to civilian air traffic controllers and play a key role in the effective use of Naval airpower throughout the world in operational and training environments...

| style="border: 1px solid #25185d; text-align: center" |AC
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Air-Traffic Controllers assist with the speedy flow of air traffic by directing and controlling aircraft. They operate field lighting systems and communicate with aircraft. They furnish pilots with information regarding traffic, navigation

Navigation

Navigation is the process of monitoring and controlling the movement of a craft or vehicle from one place to another. It is also the term of art used for the specialized knowledge used by navigators to perform navigation tasks...

and weather

Weather

Weather is the state of the atmosphere, to the degree that it is hot or cold, wet or dry, calm or stormy, clear or cloudy. Most weather phenomena occur in the troposphere, just below the stratosphere. Weather refers, generally, to day-to-day temperature and precipitation activity, whereas climate...

conditions, as well as operate and adjust ground-controlled approach

Ground-controlled approach

In aviation a ground-controlled approach , is a type of service provided by air-traffic controllers whereby they guide aircraft to a safe landing in adverse weather conditions based on radar images...

| style="border: 1px solid #25185d;" | Aviation Machinist's Mate
Aviation Machinist's Mate
Aviation Machinist's Mate is a United States Navy occupational rating.Aviation Machinist's Mates maintain aircraft engines and their related systems, including the induction, cooling, fuel, oil, compression, combustion, turbine, gas turbine compressor, exhaust and propeller systems; preflight...

| style="border: 1px solid #25185d; text-align: center" |AD
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Aviation Machinist's Mates are usually assigned to billets concerned with the maintenance of turbo-jet aircraft engines and associated equipment. They are responsible for the maintenance and replacement of aircraft engine

Aircraft engine

An aircraft engine is the component of the propulsion system for an aircraft that generates mechanical power. Aircraft engines are almost always either lightweight piston engines or gas turbines...

s and accessories, as well as performing the duties of flight engineer

Flight engineer

Flight engineers work in three types of aircraft: fixed-wing , rotary wing , and space flight .As airplanes became even larger requiring more engines and complex systems to operate, the workload on the two pilots became excessive during certain critical parts of the flight regime, notably takeoffs...

s.
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| style="border: 1px solid #25185d;" | Aviation Electrician's Mate
Aviation Electrician's Mate
Aviation Electrician's Mate is a United States Navy occupational rating.Aviation Electrician's Mates maintain electrical and instrument systems, including power generation, conversion, and distribution systems; aircraft batteries; interior and exterior lighting; electrical control of aircraft...

| style="border: 1px solid #25185d; text-align: center" |AE
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Aviation Electrician's Mates are responsible for aircraft electrical power generating and converting systems. They maintain lighting, control

Aircraft flight control systems

A conventional fixed-wing aircraft flight control system consists of flight control surfaces, the respective cockpit controls, connecting linkages, and the necessary operating mechanisms to control an aircraft's direction in flight...

, and indicating systems and can install as well as maintain flight

Primary flight display

A primary flight display or PFD is a modern aircraft instrument dedicated to flight information. Much like multi-function displays, primary flight displays are built around an LCD or CRT display device...

and engine instrument

Primary flight display

| style="border: 1px solid #25185d;" | Aerographer's Mate
Aerographer's Mate
Aerographer's Mate is a United States Navy occupational rating.-Duties:Aerographer's Mates observe, collect, record and analyze meteorological and oceanographic data; make visual and instrument observations of weather and sea conditions; operate meteorological satellite receivers and interpret...

| style="border: 1px solid #25185d; text-align: center" |AG
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Aerographer's Mates are the U.S. Navy's weather forecasters. They are trained in meteorology

Meteorology

Meteorology is the interdisciplinary scientific study of the atmosphere. Studies in the field stretch back millennia, though significant progress in meteorology did not occur until the 18th century. The 19th century saw breakthroughs occur after observing networks developed across several countries...

and the use of aerological instruments that monitor air pressure

Atmospheric pressure

Atmospheric pressure is the force per unit area exerted into a surface by the weight of air above that surface in the atmosphere of Earth . In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point...

, temperature

Temperature

Temperature is a physical property of matter that quantitatively expresses the common notions of hot and cold. Objects of low temperature are cold, while various degrees of higher temperatures are referred to as warm or hot...

, humidity

Humidity

Humidity is a term for the amount of water vapor in the air, and can refer to any one of several measurements of humidity. Formally, humid air is not "moist air" but a mixture of water vapor and other constituents of air, and humidity is defined in terms of the water content of this mixture,...

, wind speed

Wind speed

Wind speed, or wind velocity, is a fundamental atmospheric rate.Wind speed affects weather forecasting, aircraft and maritime operations, construction projects, growth and metabolism rate of many plant species, and countless other implications....

, and direction

Wind direction

Wind direction is reported by the direction from which it originates. For example, a northerly wind blows from the north to the south. Wind direction is usually reported in cardinal directions or in azimuth degrees...

. They prepare weather maps

Surface weather analysis

Surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground-based weather stations...

and forecasts

Weather forecasting

Weather forecasting is the application of science and technology to predict the state of the atmosphere for a given location. Human beings have attempted to predict the weather informally for millennia, and formally since the nineteenth century...

and can analyze atmospheric conditions to determine the best flight levels for aircraft. An AG can measure wind and air density to aid the accuracy of anti-aircraft firing, shore bombardment

Bombardment

A bombardment is an attack by artillery fire directed against fortifications, troops or towns and buildings.Prior to World War I the term term was only applied to the bombardment of defenceless or undefended objects, houses, public buildings, it was only loosely employed to describe artillery...

| style="border: 1px solid #25185d;" | Aviation Structural Mechanic
Aviation Structural Mechanic
Aviation Structural Mechanic is a United States Navy occupational rating.-Duties:Aviation Structural Mechanics maintain aircraft airframe and structural components flight surfaces and controls hydraulic and pneumatic control and actuating systems and mechanisms, landing gear systems, air...

| style="border: 1px solid #25185d; text-align: center" |AM
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |(Safety Equipment)
(Hydraulics and Structures)
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |AME
AM

|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Aviation Structural Mechanics are responsible for the maintenance of many aircraft parts such as wing

Wing

A wing is an appendage with a surface that produces lift for flight or propulsion through the atmosphere, or through another gaseous or liquid fluid...

s, fuselage

Fuselage

The fuselage is an aircraft's main body section that holds crew and passengers or cargo. In single-engine aircraft it will usually contain an engine, although in some amphibious aircraft the single engine is mounted on a pylon attached to the fuselage which in turn is used as a floating hull...

, tail

Tail

The tail is the section at the rear end of an animal's body; in general, the term refers to a distinct, flexible appendage to the torso. It is the part of the body that corresponds roughly to the sacrum and coccyx in mammals, reptiles, and birds...

, control surfaces, landing gear

Landing Gear

Landing Gear is Devin the Dude's fifth studio album. It was released on October 7, 2008. It was his first studio album since signing with the label Razor & Tie. It features a high-profile guest appearance from Snoop Dogg. As of October 30, 2008, the album has sold 18,906 copies.-Track...

, and hydraulic systems. AME's maintain and repair oxygen, cockpit and cabin pressurization, and ejection seat systems.
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| style="border: 1px solid #25185d;" | Aviation Ordnanceman
Aviation Ordnanceman
Aviation Ordnanceman is a United States Navy occupational rating.-Overview:Aviation Ordnancemen operate and handle aviation ordnance equipment. They are responsible for the maintenance of guns, bombs, torpedoes, rockets, and missiles. Their duties include the stowing, issuing, and loading of...

| style="border: 1px solid #25185d; text-align: center" |AO
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Aviation Ordnancemen operate and handle aviation ordnance equipment. They are responsible for the maintenance of guns

Güns

Güns or Guens may refer to:* Kőszeg, Hungary * Kőszeg Mountains, Hungary * Akiva Güns , birth name of Akiva Eger, a Hungarian-Polish rabbi- See also :* Guns * Gün, a surname...

, bombs, torpedoes, rocket

Rocket

A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engine. In all rockets, the exhaust is formed entirely from propellants carried within the rocket before use. Rocket engines work by action and reaction...

s, and missiles. Their duties include the stowing, issuing, and loading of munitions and small arms

Small arms

Small arms is a term of art used by armed forces to denote infantry weapons an individual soldier may carry. The description is usually limited to revolvers, pistols, submachine guns, carbines, assault rifles, battle rifles, multiple barrel firearms, sniper rifles, squad automatic weapons, light...

.
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| style="border: 1px solid #25185d;" | Aviation Support Equipment Technician
Aviation Support Equipment Technician
Aviation Support Equipment Technician is a United States Navy occupational rating. The United States Marine Corps currently maintains 3 separate Aviation Support Equipment military occupational specialties...

| style="border: 1px solid #25185d; text-align: center" |AS
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Aviation Support Equipment Technicians perform intermediate maintenance on aviation accessory equipment at naval air stations

Naval Air Station

A Naval Air Station is a military airbase, and consists of a permanent land-based operations locations for the military aviation division of the relevant branch of their Navy...

and aboard aircraft carriers. They maintain gasoline

Internal combustion engine

The internal combustion engine is an engine in which the combustion of a fuel occurs with an oxidizer in a combustion chamber. In an internal combustion engine, the expansion of the high-temperature and high -pressure gases produced by combustion apply direct force to some component of the engine...

and diesel engine

Diesel engine

A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber...

s, gas turbine

Gas turbine

A gas turbine, also called a combustion turbine, is a type of internal combustion engine. It has an upstream rotating compressor coupled to a downstream turbine, and a combustion chamber in-between....

compressor units

Gas compressor

A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume.Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are compressible, the compressor also reduces the volume of a gas...

| style="border: 1px solid #25185d;" | Aviation Electronics Technician
| style="border: 1px solid #25185d; text-align: center" |AT
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Aviation Electronics Technicians are responsible for the maintenance of all aircraft radio

Airband

Airband or Aircraft band is the name for a group of frequencies in the VHF radio spectrum allocated to radio communication in civil aviation, sometimes also referred to as VHF, or phonetically as "Victor"...

, radar

Radar

, and other rapid communications devices. They maintain all navigation

Navigation

| style="border: 1px solid #25185d;" | Naval Aircrewman
Aviation Warfare Systems Operator
Naval Aircrewman is a United States Navy occupational rating. The rate was previously designated as Aviation Antisubmarine Warfare Operator. However under the CNO directed Helicopter Master Plan, all 78XX, and 94XX aircrewmen were redesignated as 'Naval Aircrewman'...

| style="border: 1px solid #25185d; text-align: center" |AW
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |(Operational Level) (Mechanical) (Avionics)(Sierra)(Romeo)
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" | (AWO) (AWF) (AWV) (AWS) (AWR)
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Naval Aircrewman operate airborne radar

Radar

and electronic equipment used in detecting, locating, and tracking submarines. They provide information for aircraft and surface navigation

Navigation

and act as helicopter

Helicopter

A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...

-rescue crewmen, and function as part of the flight crew on long-range and intermediate-range aircraft. Beginning in 2009, other enlisted Aviation ratings that perform flight engineer or loadmaster duties in Navy aircraft will convert to the AW rating.
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| style="border: 1px solid #25185d;" | Aviation Maintenance Administrationman
Aviation Maintenance Administrationman
Aviation Maintenance Administrationman is a United States Navy occupational rating.-Duties:Aviation Maintenance Administrationmen perform technical, managerial, and support duties required by the Naval Aviation Maintenance Program; prepare aircraft and maintenance related correspondence; maintain...

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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Aviation Maintenance Administrationmen perform clerical

Clerk

Clerk, the vocational title, commonly refers to a white-collar worker who conducts general office or, in some instances, sales tasks. It is also occasionally used to refer to third-year medical students completing a medical clerkship. The responsibilities of clerical workers commonly include record...

, administrative, and managerial

Management

Management in all business and organizational activities is the act of getting people together to accomplish desired goals and objectives using available resources efficiently and effectively...

duties necessary to keep aircraft maintenance activities running smoothly. They schedule and coordinate the maintenance workload, including inspections and modifications to aircraft and equipment.
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| style="border: 1px solid #25185d;" | Aircrew Survival Equipmentman
Aircrew Survival Equipmentman
Aircrew Survival Equipmentman is a United States Navy occupational rating. Aircrew Survival Equipmentmen inspect, maintain and repair parachutes, seat pans, survival equipment, and flight and protective clothing and equipment; pack and rig parachutes; pack and equip liferafts;troubleshoot oxygen...

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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Aircrew Survival Equipmentmen are responsible for the packing and care of parachutes

Parachutes

Parachutes is the debut album by English alternative rock band Coldplay, released by the record label Parlophone on 10 July 2000 in the United Kingdom. The album was produced by the band and British record producer Ken Nelson, excluding one track which was produced by Chris Allison...

. They maintain flight clothing

Flight suit

A flight suit is a full body garment, worn while flying aircraft such as military airplanes, gliders and helicopters. These suits are generally made to keep the wearer warm, as well as being practical , and durable . Its appearance is usually similar to a jumpsuit. A military flight suit may also...

, rubber life rafts, life jackets, oxygen-breathing apparatus

Oxygen Breathing Apparatus

An Oxygen Breathing Apparatus or OBA is a rebreather. It is used primarily in firefighting. Its oxygen is generated by chemicals contained in the green canister, which is inserted at the base of the breathing device....

, protective clothing

Personal protective equipment

Personal protective equipment refers to protective clothing, helmets, goggles, or other garment or equipment designed to protect the wearer's body from injury by blunt impacts, electrical hazards, heat, chemicals, and infection, for job-related occupational safety and health purposes, and in...

, and air-sea rescue equipment.
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Construction ratings

Insignia	General rating	Abbreviation	Service rating	Abbreviation
	Builder Builder (US Navy) Builder is a United States Navy occupational rating. A builder is responsible for the construction and repair of wood, concrete, and masonry structures. Their work can involve sheet rock, ceramic tile, or painting, while senior personnel deal with material estimates and labor projections...

}
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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Navy builders are like civilian construction

Construction

In the fields of architecture and civil engineering, construction is a process that consists of the building or assembling of infrastructure. Far from being a single activity, large scale construction is a feat of human multitasking...

workers. They are skilled carpenter

Carpenter

A carpenter is a skilled craftsperson who works with timber to construct, install and maintain buildings, furniture, and other objects. The work, known as carpentry, may involve manual labor and work outdoors....

s, plasterer

Plasterer

A plasterer is a tradesman who works with plaster, such as forming a layer of plaster on an interior wall or plaster decorative moldings on ceilings or walls...

s, roofer

Roofer

A roofer specializes in roof construction, concentrating on the application of materials that water proof and / or weather proof buildings,designed material—as a substrate for the roofing materials to be installed on. The rafters, beams, and trusses are the frame or skeleton for the roof to be...

s, cement finishers, asphalt workers, masons

Masonry

Masonry is the building of structures from individual units laid in and bound together by mortar; the term masonry can also refer to the units themselves. The common materials of masonry construction are brick, stone, marble, granite, travertine, limestone; concrete block, glass block, stucco, and...

, and painters

Painter and decorator

A house painter and decorator is a tradesman responsible for the painting and decorating of buildings, and is also known as a decorator or house painter...

. They build and repair all types of structures including: piers, bridges, towers, schools, offices, houses, and other buildings.
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| style="border: 1px solid #25185d;" | Construction Electrician
Construction Electrician (US Navy)
Construction Electrician is a United States Navy occupational rating.Construction Electricians install and repair wiring; overhead and underground primary and secondary distribution systems; setup, operate and service electrical equipment; climb poles and towers utilizing lineman's equipment;...

| style="border: 1px solid #25185d; text-align: center" |CE
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Construction Electricians are responsible for the power production and electrical work required to build and operate airfields, roads, barracks, and hospitals. The work of a CE is equivalent to civilian construction electrician

Electrician

An electrician is a tradesman specializing in electrical wiring of buildings, stationary machines and related equipment. Electricians may be employed in the installation of new electrical components or the maintenance and repair of existing electrical infrastructure. Electricians may also...

s, telephone

Telephone

The telephone , colloquially referred to as a phone, is a telecommunications device that transmits and receives sounds, usually the human voice. Telephones are a point-to-point communication system whose most basic function is to allow two people separated by large distances to talk to each other...

| style="border: 1px solid #25185d;" | Construction Mechanic
Construction Mechanic (US Navy)
Construction Mechanic is a United States Navy occupational rating.Construction Mechanics perform tasks involved in maintenance, repair and overhaul of automotive, materials handling and construction equipment; assign and supervise activities of assistants who locate, analyze and correct...

| style="border: 1px solid #25185d; text-align: center" |CM
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Construction Mechanics maintain many types of construction machinery including; bus

Bus

A bus is a road vehicle designed to carry passengers. Buses can have a capacity as high as 300 passengers. The most common type of bus is the single-decker bus, with larger loads carried by double-decker buses and articulated buses, and smaller loads carried by midibuses and minibuses; coaches are...

es, dump truck

Dump truck

A dump truck is a truck used for transporting loose material for construction. A typical dump truck is equipped with a hydraulically operated open-box bed hinged at the rear, the front of which can be lifted up to allow the contents to be deposited on the ground behind the truck at the site of...

s, bulldozer

Bulldozer

A bulldozer is a crawler equipped with a substantial metal plate used to push large quantities of soil, sand, rubble, etc., during construction work and typically equipped at the rear with a claw-like device to loosen densely-compacted materials.Bulldozers can be found on a wide range of sites,...

s, rollers

Road roller

A road roller is a compactor type engineering vehicle used to compact soil, gravel, concrete, or asphalt in the construction of roads and foundations, similar rollers are used also at landfills or in agriculture.In some parts of the world, road rollers are still known colloquially as steam...

, cranes

Crane (machine)

A crane is a type of machine, generally equipped with a hoist, wire ropes or chains, and sheaves, that can be used both to lift and lower materials and to move them horizontally. It uses one or more simple machines to create mechanical advantage and thus move loads beyond the normal capability of...

, backhoes, and pile driver

Pile driver

A pile driver is a mechanical device used to drive piles into soil to provide foundation support for buildings or other structures. The term is also used in reference to members of the construction crew that work with pile-driving rigs....

s. They work on gasoline and diesel engines and transmissions

Transmission (mechanics)

A machine consists of a power source and a power transmission system, which provides controlled application of the power. Merriam-Webster defines transmission as: an assembly of parts including the speed-changing gears and the propeller shaft by which the power is transmitted from an engine to a...

. They also repair electrical

Electricity

Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire...

, hydraulic

Hydraulics

Hydraulics is a topic in applied science and engineering dealing with the mechanical properties of liquids. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the engineering uses of fluid properties. In fluid power, hydraulics is used for the generation, control,...

, pneumatic

Pneumatics

Pneumatics is a branch of technology, which deals with the study and application of use of pressurized gas to effect mechanical motion.Pneumatic systems are extensively used in industry, where factories are commonly plumbed with compressed air or compressed inert gases...

and steering systems

Power steering

Power steering helps drivers steer vehicles by augmenting steering effort of the steering wheel.Hydraulic or electric actuators add controlled energy to the steering mechanism, so the driver needs to provide only modest effort regardless of conditions. Power steering helps considerably when a...

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| style="border: 1px solid #25185d;" | Engineering Aide
Engineering Aide (US Navy)
Engineering Aide is a United States Navy occupational rating.Engineering Aides plan, supervise and perform tasks required in construction surveying, construction drafting, planning and estimating and quality control; prepare progress reports, time records, construction schedules and material and...

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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Engineering Aides provide construction engineers with information needed to develop final construction plans. They conduct surveys

Surveying

See Also: Public Land Survey SystemSurveying or land surveying is the technique, profession, and science of accurately determining the terrestrial or three-dimensional position of points and the distances and angles between them...

for roads, airfields, buildings, etc. They perform soil test

Soil test

In agriculture, a soil test is the analysis of a soil sample to determine nutrient and contaminant content, composition and other characteristics such as acidity or pH level. Tests are usually performed to measure the expected growth potential of a soil...

s, prepare topographic

Topography

Topography is the study of Earth's surface shape and features or those ofplanets, moons, and asteroids...

and hydrographic maps

Hydrography

Hydrography is the measurement of the depths, the tides and currents of a body of water and establishment of the sea, river or lake bed topography and morphology. Normally and historically for the purpose of charting a body of water for the safe navigation of shipping...

. They also survey for sewer

Sanitary sewer

A sanitary sewer is a separate underground carriage system specifically for transporting sewage from houses and commercial buildings to treatment or disposal. Sanitary sewers serving industrial areas also carry industrial wastewater...

s, water lines

Water pipe

Water pipes are pipes or tubes, frequently made of polyvinyl chloride , ductile iron, steel, cast iron, polypropylene, polyethylene, or copper, that carry pressurized and treated fresh water to buildings , as well as inside the building.-History:For many centuries, lead was the favoured material...

, drainage

Drainage

Drainage is the natural or artificial removal of surface and sub-surface water from an area. Many agricultural soils need drainage to improve production or to manage water supplies.-Early history:...

systems and underwater excavations

Earthworks (engineering)

Earthworks are engineering works created through the moving or processing of quantities of soil or unformed rock.- Civil engineering use :Typical earthworks include roads, railway beds, causeways, dams, levees, canals, and berms...

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| style="border: 1px solid #25185d;" | Equipment Operator
Equipment Operator (US Navy)
Equipment Operator is a United States Navy occupational rating.Equipment Operators perform tasks involving deployment and operation of automotive, materials handling, weight lifting and construction equipment; direct and coordinate efforts of individuals and crews in execution of construction,...

| style="border: 1px solid #25185d; text-align: center" |EO
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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Equipment Operators work with heavy machinery such as bulldozers, power shovels

Electric shovel

A power shovel is a bucket-equipped machine, usually electrically powered, used for digging and loading earth or fragmented rock and for mineral extraction.-Design:...

, pile driver

Pile driver

s, etc. They use this machinery to dig ditches, excavate for building foundations

Foundation (architecture)

A foundation is the lowest and supporting layer of a structure. Foundations are generally divided into two categories: shallow foundations and deep foundations.-Shallow foundations:...

, break up old concrete

Concrete

Concrete is a composite construction material, composed of cement and other cementitious materials such as fly ash and slag cement, aggregate , water and chemical admixtures.The word concrete comes from the Latin word...

or asphalt

Asphalt

Asphalt or , also known as bitumen, is a sticky, black and highly viscous liquid or semi-solid that is present in most crude petroleums and in some natural deposits, it is a substance classed as a pitch...

paving and pour new paving

Pavement (material)

Road surface or pavement is the durable surface material laid down on an area intended to sustain vehicular or foot traffic, such as a road or walkway. In the past cobblestones and granite setts were extensively used, but these surfaces have mostly been replaced by asphalt or concrete. Such...

. They grade and remove debris from construction sites, raise girder

Girder

A girder is a support beam used in construction. Girders often have an I-beam cross section for strength, but may also have a box shape, Z shape or other forms. Girder is the term used to denote the main horizontal support of a structure which supports smaller beams...

| style="border: 1px solid #25185d;" | Steelworker
| style="border: 1px solid #25185d; text-align: center" |SW
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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Steelworkers rig and operate all special equipment used to move or hoist structural steel

Steel

Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

, structural shapes and similar material. They erect and dismantle steel bridges, piers, buildings, storage tank

Storage tank

A storage tank is a container, usually for holding liquids, sometimes for compressed gases . The term can be used for reservoirs , and for manufactured containers. The usage of the word tank for reservoirs is common or universal in Indian English, American English and moderately common in British...

s, etc. They work with steel shapes, plates and built-up sections used in the construction of overseas facilities. They are skilled in arc welding

Arc welding

Arc welding is a type of welding that uses a welding power supply to create an electric arc between an electrode and the base material to melt the metals at the welding point. They can use either direct or alternating current, and consumable or non-consumable electrodes...

, MIG welding

Gas metal arc welding

Gas metal arc welding , sometimes referred to by its subtypes metal inert gas welding or metal active gas welding, is a semi-automatic or automatic arc welding process in which a continuous and consumable wire electrode and a shielding gas are fed through a welding gun...

, TIG

Tig

Tig may refer to:*Tig Notaro, an American stand-up comic*Tig, another name for tag *Alex "Tig" Trager, a character in Sons of AnarchyTIG may refer to:*Tungsten inert gas welding, aka gas tungsten arc welding...

| style="border: 1px solid #25185d;" | Utilitiesman
Utilitiesman (US Navy)
Utilitiesman is a United States Navy occupational rating.Utilitiesmen plan, supervise and perform tasks involved in installation, maintenance and repair of plumbing, heating, steam, compressed air, fuel storage and distribution systems, water treatment and distribution systems, air conditioning...

| style="border: 1px solid #25185d; text-align: center" |UT
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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Utilitiesmen supervise and perform tasks involved in the installation and maintenance of plumbing, steam, compressed air

Pneumatics

and fuel storage and distribution systems. They maintain air conditioning

Air conditioning

An air conditioner is a home appliance, system, or mechanism designed to dehumidify and extract heat from an area. The cooling is done using a simple refrigeration cycle...

and refrigeration

Refrigeration

Refrigeration is a process in which work is done to move heat from one location to another. This work is traditionally done by mechanical work, but can also be done by magnetism, laser or other means...

equipment, as well as sewage collecting and disposal facilities.
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Administration, deck, medical, technical, and weapons specialty ratings

Insignia	General rating	Abbreviation	Service rating	Abbreviation
	Boatswain's Mate Boatswain's Mate (US Navy) The United States Navy occupational rating of boatswain's mate is a designation given by the Bureau of Naval Personnel to enlisted members who are rated or "striking" for the rating as a deck seaman. The colloquial form of address for a boatswain's mate is 'Boats'...	BM
	Boatswain's Mates train and supervise personnel in all activities relating to marlinspike Marlinspike Marlinspike is a tool used in ropework for tasks such as unlaying rope for splicing, untying knots, forming a toggle , or forming a makeshift handle.... , deck Deck (ship) A deck is a permanent covering over a compartment or a hull of a ship. On a boat or ship, the primary deck is the horizontal structure which forms the 'roof' for the hull, which both strengthens the hull and serves as the primary working surface... , and boat Boat A boat is a watercraft of any size designed to float or plane, to provide passage across water. Usually this water will be inland or in protected coastal areas. However, boats such as the whaleboat were designed to be operated from a ship in an offshore environment. In naval terms, a boat is a... seamanship, and oversee the maintenance of the ship's external structure and deck equipment. They act as petty officers Petty Officer A petty officer is a non-commissioned officer in many navies and is given the NATO rank denotion OR-6. They are equal in rank to sergeant, British Army and Royal Air Force. A Petty Officer is superior in rank to Leading Rate and subordinate to Chief Petty Officer, in the case of the British Armed... in charge of small craft and may perform duties as master-at-arms Master-at-arms A master-at-arms may be a naval rating responsible for discipline and law enforcement, an army officer responsible for physical training, or a member of the crew of a merchant ship responsible for security and law enforcement.-Royal Navy:The master-at-arms is a ship's senior rating, comparable in... , serve in or take charge of gun Gun A gun is a muzzle or breech-loaded projectile-firing weapon. There are various definitions depending on the nation and branch of service. A "gun" may be distinguished from other firearms in being a crew-served weapon such as a howitzer or mortar, as opposed to a small arm like a rifle or pistol,... crews, and damage control Damage control Damage control is a term used in the Merchant Marine, maritime industry and navies for the emergency control of situations that may hazard the sinking of a ship... parties.

	Culinary Specialist Culinary Specialist (US Navy) Culinary Specialist is a United States Navy occupational rating. It was formerly the Mess Management Specialist rating until 15 January 2004, and as Steward prior to 1975.-Duties:...	CS
	Culinary Specialists prepare menus and order the quantities and types of food items. They operate galley Galley (kitchen) The galley is the compartment of a ship, train or aircraft where food is cooked and prepared. It can also refer to a land based kitchen on a naval base or a particular formed household kitchen.-Ship's kitchen:... and dining facilities, manage large facilities, keep records for food supplies and financial FINANCIAL FINANCIAL is the weekly English-language newspaper with offices in Tbilisi, Georgia and Kiev, Ukraine. Published by Intelligence Group LLC, FINANCIAL is focused on opinion leaders and top business decision-makers; It's about world’s largest companies, investing, careers, and small business. It is... budget Budget A budget is a financial plan and a list of all planned expenses and revenues. It is a plan for saving, borrowing and spending. A budget is an important concept in microeconomics, which uses a budget line to illustrate the trade-offs between two or more goods... s, and can even serve as flight attendant Flight attendant Flight attendants or cabin crew are members of an aircrew employed by airlines primarily to ensure the safety and comfort of passengers aboard commercial flights, on select business jet aircraft, and on some military aircraft.-History:The role of a flight attendant derives from that of similar... aircrewmen. They can also serve as personal food service specialist, household/estate manager or chef for an admiral Admiral (United States) In the United States Navy, the United States Coast Guard and the United States Public Health Service Commissioned Corps, admiral is a four-star flag officer rank, with the pay grade of O-10. Admiral ranks above vice admiral and below Fleet Admiral in the Navy; the Coast Guard and the Public Health... , the First Family First Family of the United States The First Family of the United States is the unofficial title for the family of the President of the United States, who is both head of state and head of government of the United States. Members of the First Family consist of the President, the First Lady of the United States, and any of their... , President of the United States President of the United States The President of the United States of America is the head of state and head of government of the United States. The president leads the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces.... at Camp David Camp David Camp David is the country retreat of the President of the United States and his guests. It is located in low wooded hills about 60 mi north-northwest of Washington, D.C., on the property of Catoctin Mountain Park in unincorporated Frederick County, Maryland, near Thurmont, at an elevation of... and the White House White House The White House is the official residence and principal workplace of the president of the United States. Located at 1600 Pennsylvania Avenue NW in Washington, D.C., the house was designed by Irish-born James Hoban, and built between 1792 and 1800 of white-painted Aquia sandstone in the Neoclassical... , to the Vice President Vice president A vice president is an officer in government or business who is below a president in rank. The name comes from the Latin vice meaning 'in place of'. In some countries, the vice president is called the deputy president... at Number One Observatory Circle Number One Observatory Circle Number One Observatory Circle is the official residence of the Vice President of the United States.Located on the northeast grounds of the United States Naval Observatory in Washington, DC, the house was built in 1893 for its superintendent. The Chief of Naval Operations liked the house so much... or for a commanding officer Commanding officer The commanding officer is the officer in command of a military unit. Typically, the commanding officer has ultimate authority over the unit, and is usually given wide latitude to run the unit as he sees fit, within the bounds of military law... aboard ship or at shore bases. Ashore, Culinary Specialists often manage and maintain clubs, TAD hotels and Permanent Party naval barracks.

	Cryptologic Technician Cryptologic technician Cryptologic Technician is a United States Navy enlisted rating or job specialty. The CT community performs a wide range of tasks in support of the national intelligence effort, with an emphasis on cryptology and signal intelligence related products....

}
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |(Interpretive)
(Maintenance)
(Networks)
(Collection)
(Technical)
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |CTI
CTM
CTN
CTR
CTT
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Cryptologic Technicians control the flow of messages and information

Information

Information in its most restricted technical sense is a message or collection of messages that consists of an ordered sequence of symbols, or it is the meaning that can be interpreted from such a message or collection of messages. Information can be recorded or transmitted. It can be recorded as...

and also conduct Electronic Warfare. Their work depends on their special branch: CTAs or Administration Cryptologic Technicians (As of 01 OCT 07 CTA merged with the YN rating) perform administrative and clerical duties that control access to classified material

Classified information

Classified information is sensitive information to which access is restricted by law or regulation to particular groups of persons. A formal security clearance is required to handle classified documents or access classified data. The clearance process requires a satisfactory background investigation...

. CTIs or Interpretive Cryptologic Technicians handle radiotelephone communication

Communication

Communication is the activity of conveying meaningful information. Communication requires a sender, a message, and an intended recipient, although the receiver need not be present or aware of the sender's intent to communicate at the time of communication; thus communication can occur across vast...

s and foreign language translation

Translation

Translation is the communication of the meaning of a source-language text by means of an equivalent target-language text. Whereas interpreting undoubtedly antedates writing, translation began only after the appearance of written literature; there exist partial translations of the Sumerian Epic of...

. CTMs or Maintenance Cryptologic Technicians maintain electronic

Electronics

Electronics is the branch of science, engineering and technology that deals with electrical circuits involving active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies...

and electromechanical equipment. CTNs or Networking Cryptologic Technicians handle computer communication. CTRs or Collection Cryptologic Technicians handle all Morse code

Morse code

Morse code is a method of transmitting textual information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment...

communications and operate radio direction-finding equipment. Finally, CTTs or Technical Cryptologic Technicians deal with Electronic Warfare. CTTs are the first line of defense against inbound threats and Anti-Ship missiles. They also collect, analyze, and provide electronic intelligence support to commands throughout the world.
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| style="border: 1px solid #25185d;" | Electronics Technician
Electronics Technician
Electronics Technician is a common enlisted occupation in many Militaries. Common duties for ETs include repair, calibration, and basic maintenance of most electronic equipment.-US Navy:...

| style="border: 1px solid #25185d; text-align: center" |ET
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |(Surface)
(Submarine Navigation)
(Submarine Communications)
(Nuclear Power)
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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Electronics Technicians are responsible for electronic equipment

Electronics

used to send and receive messages, detect enemy planes and ships, and determine target distances. They maintain, repair, and calibrate all electronic equipment used for communications, detection tracking

Radar tracker

A radar tracker is a component of a radar system, or an associated command and control system, that associates consecutive radar observations of the same target into tracks...

, identification, and navigation

Navigation

. Electronics Technicians are employed onboard nuclear powered ships

Nuclear marine propulsion

Nuclear marine propulsion is propulsion of a ship by a nuclear reactor. Naval nuclear propulsion is propulsion that specifically refers to naval warships...

to maintain the control subsystems in nuclear reactor

Nuclear reactor

A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are used for generating electricity and for the propulsion of ships. Usually heat from nuclear fission is passed to a working fluid , which runs through turbines that power either ship's...

s.
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| style="border: 1px solid #25185d;" | Fire Controlman
Fire Controlman
Fire Controlman is a United States Navy occupational rating.Fire Controlmen provide system employment recommendations; perform organizational and intermediate maintenance on digital computer equipment, subsystems, and systems; operate and maintain combat and weapons direction systems,...

| style="border: 1px solid #25185d; text-align: center" |FC
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Fire Controlmen maintain the control mechanism used in weapons systems on combat ships. Complex electronic

Electronics

, electrical and hydraulic equipment is required to ensure the accuracy of Navy guided-missile and surface gunfire-control systems. They are responsible for the operation, routine care and repair of this equipment, which includes radar

Radar

s, computers, weapons direction equipment

Fire-control system

A fire-control system is a number of components working together, usually a gun data computer, a director, and radar, which is designed to assist a weapon system in hitting its target. It performs the same task as a human gunner firing a weapon, but attempts to do so faster and more...

, target designation systems

Fire-control system

, gyroscopes and rangefinder

Rangefinder

A rangefinder is a device that measures distance from the observer to a target, for the purposes of surveying, determining focus in photography, or accurately aiming a weapon. Some devices use active methods to measure ; others measure distance using trigonometry...

s.
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| style="border: 1px solid #25185d;" | Fire Control Technician
Fire Control Technician
Fire Control Technician is a United States Navy occupational rating.Fire Control Technicians perform organizational and intermediate level maintenance on submarine combat control systems, equipment, and associated combat control systems test equipment; operate submarine combat control systems;...

| style="border: 1px solid #25185d; text-align: center" |FT
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Fire Control Technicians maintain the electronic equipment used in submarine

Submarine

A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

weapons systems. They are responsible for the operation and maintenance of the complex electronic, electrical and mechanical equipment required to ensure the accuracy of Navy guided-missile systems and underwater weapons. They are responsible for ship safety by recognizing and analyzing data from several critical systems including sonar, radar, periscope, radio, and torpedo inputs. Fire Control Technicians are also responsible for the submarine's internal LAN system.
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| style="border: 1px solid #25185d;" | Gunner's Mate
Gunner's Mate
The United States Navy occupational rating of gunner's mate also known as gunsmens mate is a designation given by the Bureau of Naval Personnel to enlisted sailors who either satisfactorily complete initial Gunner's Mate "A" school training, or who "strike" for the rating as a deck seaman by...

| style="border: 1px solid #25185d; text-align: center" |GM
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Gunner's Mates operate and maintain all gunnery equipment, guided-missile launching systems, rocket launchers, guns

Güns

Güns or Guens may refer to:* Kőszeg, Hungary * Kőszeg Mountains, Hungary * Akiva Güns , birth name of Akiva Eger, a Hungarian-Polish rabbi- See also :* Guns * Gün, a surname...

, turrets, and associated equipment. They repair electrical, electronic

Electronics

, hydraulic and mechanical systems, and make detailed casualty analysis. They test ammunition

Ammunition

Ammunition is a generic term derived from the French language la munition which embraced all material used for war , but which in time came to refer specifically to gunpowder and artillery. The collective term for all types of ammunition is munitions...

, missiles and their ordnance components. GMs train and supervise personnel in the handling and stowage of ammunition

Ammunition

| style="border: 1px solid #25185d;" | Hospital Corpsman
| style="border: 1px solid #25185d; text-align: center" |HM
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Hospital Corpsmen are medical professionals who provide health care to service people and their families. They serve as pharmacy technician

Pharmacy technician

A pharmacy technician, also sometimes known as a pharmaceutical technician, is a health care worker who performs pharmacy related functions, generally working under the direct supervision of a licensed pharmacist or other health professional...

s, medical technicians

Emergency medical technician

Emergency Medical Technician or Ambulance Technician are terms used in some countries to denote a healthcare provider of emergency medical services...

, nurse's aides, physician

Physician

A physician is a health care provider who practices the profession of medicine, which is concerned with promoting, maintaining or restoring human health through the study, diagnosis, and treatment of disease, injury and other physical and mental impairments...

's or dentist

Dentist

A dentist, also known as a 'dental surgeon', is a doctor that specializes in the diagnosis, prevention, and treatment of diseases and conditions of the oral cavity. The dentist's supporting team aides in providing oral health services...

's assistants, battlefield medics, and more. All work falls into several categories: first aid

First aid

First aid is the provision of initial care for an illness or injury. It is usually performed by non-expert, but trained personnel to a sick or injured person until definitive medical treatment can be accessed. Certain self-limiting illnesses or minor injuries may not require further medical care...

and minor surgery

Surgery

Surgery is an ancient medical specialty that uses operative manual and instrumental techniques on a patient to investigate and/or treat a pathological condition such as disease or injury, or to help improve bodily function or appearance.An act of performing surgery may be called a surgical...

, patient transportation, patient care, prescription

Medical prescription

A prescription is a health-care program implemented by a physician or other medical practitioner in the form of instructions that govern the plan of care for an individual patient. Prescriptions may include orders to be performed by a patient, caretaker, nurse, pharmacist or other therapist....

| style="border: 1px solid #25185d;" | Intelligence Specialist
Intelligence Specialist (United States Navy ratings)
Intelligence Specialist is a US Navy enlisted rating or job specialty. The Intelligence Specialist rating was established in 1975 by combining the Photo Intelligenceman rating and parts of the Yeoman rating...

| style="border: 1px solid #25185d; text-align: center" |IS
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Intelligence Specialists are involved in collecting and interpreting intelligence

Military intelligence

Military intelligence is a military discipline that exploits a number of information collection and analysis approaches to provide guidance and direction to commanders in support of their decisions....

especially secret information about enemies or potential enemies. They analyze photographs and prepare charts, maps

MAPS

Maps is the plural of map, a visual representation of an area.As an acronym, MAPS may refer to:* Mail Abuse Prevention System, an organisation that provides anti-spam support...

| style="border: 1px solid #25185d;" | Information Systems Technician
Information Systems Technician (U.S. Navy)
Information System Technician is a rating for United States Navy and United States Coast Guard enlisted personnel, specializing in communications technology....

| style="border: 1px solid #25185d; text-align: center" |IT
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |(Subsurface)
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |ITS
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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Information Systems Technicians design, install, operate, and maintain state-of-the-art informations systems. This technology includes local

Län

Län and lääni refer to the administrative divisions used in Sweden and previously in Finland. The provinces of Finland were abolished on January 1, 2010....

and wide area network

Wide area network

A wide area network is a telecommunication network that covers a broad area . Business and government entities utilize WANs to relay data among employees, clients, buyers, and suppliers from various geographical locations...

s, mainframe

Mainframe computer

Mainframes are powerful computers used primarily by corporate and governmental organizations for critical applications, bulk data processing such as census, industry and consumer statistics, enterprise resource planning, and financial transaction processing.The term originally referred to the...

, mini

Minicomputer

A minicomputer is a class of multi-user computers that lies in the middle range of the computing spectrum, in between the largest multi-user systems and the smallest single-user systems...

and microcomputer

Microcomputer

A microcomputer is a computer with a microprocessor as its central processing unit. They are physically small compared to mainframe and minicomputers...

systems and associated peripheral devices. They also write programs to handle the collection, manipulation and distribution of data for a wide variety of applications and requirements. They perform the functions of a computer system analyst

Systems analyst

A systems analyst researches problems, plans solutions, recommends software and systems, and coordinates development to meet business or other requirements. They will be familiar with multiple variety of programming languages, operating systems, and computer hardware platforms...

, operate telecommunications systems including automated networks and the full spectrum of data links

Parallel communications

In telecommunication and computer science, parallel communication is a method of sending several data signals simultaneously over several parallel channels...

and circuit

Electronic circuit

An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow...

s.
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| style="border: 1px solid #25185d;" | Legalman
Legalman
Legalman is a United States Navy occupational rating.Legalmen:* Perform paralegal duties under the direction and supervision of Judge Advocates in providing and administering legal services, including matters concerned with military justice, administrative discharges, claims, admiralty law and...

| style="border: 1px solid #25185d; text-align: center" |LN
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Legalmen are trained paralegal

Paralegal

Paralegal is used in most jurisdictions to describe a paraprofessional who assists qualified lawyers in their legal work. This is true in the United States and many other countries. However, in Ontario, Canada, paralegals are licensed by the Law Society of Upper Canada, giving paralegals an...

s who assist professionals in the field of law

Law

Law is a system of rules and guidelines which are enforced through social institutions to govern behavior, wherever possible. It shapes politics, economics and society in numerous ways and serves as a social mediator of relations between people. Contract law regulates everything from buying a bus...

. They work in Navy legal offices, performing administrative and clerical tasks necessary to process claims, conduct court

Trial (law)

In law, a trial is when parties to a dispute come together to present information in a tribunal, a formal setting with the authority to adjudicate claims or disputes. One form of tribunal is a court...

and administrative hearings

Hearing (law)

In law, a hearing is a proceeding before a court or other decision-making body or officer, such as a government agency.A hearing is generally distinguished from a trial in that it is usually shorter and often less formal...

. They maintain records, documents and legal reference libraries. Legalmen may give advice on tax return

Tax return (United States)

Tax returns in the United States are reports filed with the Internal Revenue Service or with the state or local tax collection agency containing information used to calculate income tax or other taxes...

s, voter registration

Voter registration

Voter registration is the requirement in some democracies for citizens and residents to check in with some central registry specifically for the purpose of being allowed to vote in elections. An effort to get people to register is known as a voter registration drive.-Centralized/compulsory vs...

procedures, immigration

United States nationality law

Article I, section 8, clause 4 of the United States Constitution expressly gives the United States Congress the power to establish a uniform rule of naturalization. The Immigration and Naturalization Act sets forth the legal requirements for the acquisition of, and divestiture from, citizenship of...

and customs regulations, regulations governing Social Security

Social Security (United States)

In the United States, Social Security refers to the federal Old-Age, Survivors, and Disability Insurance program.The original Social Security Act and the current version of the Act, as amended encompass several social welfare and social insurance programs...

and veterans' benefits

Veterans benefits

Throughout history war veterans have received compensation. Roman soldiers were given rewards at the end of their service including cash or land . Augustus fixed the amount in AD 5 at 3000 denarii and by the time of Caracalla it had risen to 5000 denarii...

. They perform many duties related to courts-martial and nonjudicial punishment

Nonjudicial punishment

Non-judicial punishment in the United States military, is a form of military justice authorized by Article 15 of the Uniform Code of Military Justice. Non-judicial punishment or "NJP" permits commanders to administratively discipline troops without a court-martial...

| style="border: 1px solid #25185d;" | Logistics Specialist
Logistics Specialist
The Logistics Specialist is a US Navy rating that was created on October 1, 2009 by the merger of the Storekeeper and Postal Clerk ratings.,-Job Description:...

| style="border: 1px solid #25185d; text-align: center" |LS
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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Storekeepers are the Navy's supply

Materiel

Materiel is a term used in English to refer to the equipment and supplies in military and commercial supply chain management....

clerks. They see that needed supplies are available including everything from clothing

Clothing

Clothing refers to any covering for the human body that is worn. The wearing of clothing is exclusively a human characteristic and is a feature of nearly all human societies...

and machine

Machine

A machine manages power to accomplish a task, examples include, a mechanical system, a computing system, an electronic system, and a molecular machine. In common usage, the meaning is that of a device having parts that perform or assist in performing any type of work...

parts to forms and food

Food

Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals...

. They have duties as civilian warehousemen, purchasing agents

Procurement

Procurement is the acquisition of goods or services. It is favourable that the goods/services are appropriate and that they are procured at the best possible cost to meet the needs of the purchaser in terms of quality and quantity, time, and location...

, stock clerks and supervisor

Supervisor

A supervisor, foreperson, team leader, overseer, cell coach, facilitator, or area coordinator is a manager in a position of trust in business...

s, retail sales clerks, store managers, inventory clerks, buyers, parts clerks, bookkeepers

Bookkeeping

Bookkeeping is the recording of financial transactions. Transactions include sales, purchases, income, receipts and payments by an individual or organization. Bookkeeping is usually performed by a bookkeeper. Bookkeeping should not be confused with accounting. The accounting process is usually...

| style="border: 1px solid #25185d;" | Master-at-Arms
Master-at-arms
A master-at-arms may be a naval rating responsible for discipline and law enforcement, an army officer responsible for physical training, or a member of the crew of a merchant ship responsible for security and law enforcement.-Royal Navy:The master-at-arms is a ship's senior rating, comparable in...

| style="border: 1px solid #25185d; text-align: center" |MA
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
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| style="border: 1px solid #25185d;" colspan="4" valign="top" |Masters-at-Arms uphold law and order

Law and order (politics)

In politics, law and order refers to demands for a strict criminal justice system, especially in relation to violent and property crime, through harsher criminal penalties...

aboard ships, shore stations, control access to naval installations, and deploy overseas with expeditionary forces and squadrons performing Antiterrorism/Force Protection (AT/FP) duties. The basic duty of an MA is to enforce rules and regulations, maintain good order and discipline

Discipline

In its original sense, discipline is referred to systematic instruction given to disciples to train them as students in a craft or trade, or to follow a particular code of conduct or "order". Often, the phrase "to discipline" carries a negative connotation. This is because enforcement of order –...

, and protect life and property. Some other duties include conducting criminal investigations, personal protective services, take part in correctional

Corrections

In criminal justice, particularly in North America, correction, corrections, and correctional, are umbrella terms describing a variety of functions typically carried out by government agencies and involving the punishment, treatment, and supervision of persons who have been convicted of crimes....

and rehabilitative programs, Military Working Dog (MWD) handlers, small arms instruction, lethal and non-lethal weapons training, and organize and train sailors assigned to Shore Patrol police

Police

The police is a personification of the state designated to put in practice the enforced law, protect property and reduce civil disorder in civilian matters. Their powers include the legitimized use of force...

duty. Their equivalents in the civilian world are detectives, security guards, and policemen.
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| style="border: 1px solid #25185d;" | Mass Communication Specialist
| style="border: 1px solid #25185d; text-align: center" |MC
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Mass Communication Specialists are public affairs

Public affairs (military)

Public Affairs is a term for the formal offices of the branches of the United States Department of Defense whose purpose is to deal with the media and community issues. The term is also used for numerous media relations offices that are created by the U.S. military for more specific limited purposes...

and visual information experts. They present the U.S. Navy

United States Navy

story to audiences in the Navy and to the rest of the world through a variety of media. Mass Communications Specialists write and produce print and broadcast journalism

Journalism

Journalism is the practice of investigation and reporting of events, issues and trends to a broad audience in a timely fashion. Though there are many variations of journalism, the ideal is to inform the intended audience. Along with covering organizations and institutions such as government and...

, news

News

News is the communication of selected information on current events which is presented by print, broadcast, Internet, or word of mouth to a third party or mass audience.- Etymology :...

, and feature stories for military and civilian newspaper

Newspaper

A newspaper is a scheduled publication containing news of current events, informative articles, diverse features and advertising. It usually is printed on relatively inexpensive, low-grade paper such as newsprint. By 2007, there were 6580 daily newspapers in the world selling 395 million copies a...

s, magazines, television

Television

Television is a telecommunication medium for transmitting and receiving moving images that can be monochrome or colored, with accompanying sound...

and radio

Radio

Radio is the transmission of signals through free space by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space...

broadcast stations. They record still

Photography

Photography is the art, science and practice of creating durable images by recording light or other electromagnetic radiation, either electronically by means of an image sensor or chemically by means of a light-sensitive material such as photographic film...

and video photography

Digital video

Digital video is a type of digital recording system that works by using a digital rather than an analog video signal.The terms camera, video camera, and camcorder are used interchangeably in this article.- History :...

| style="border: 1px solid #25185d;" | Mineman
Mineman
Mineman is a United States Navy occupational rating.-Duties:* Perform organizational and intermediate level maintenance on underwater mines and associated equipment, guns, gun mounts, handling equipment, small arms, surface sonar and mine countermeasures equipment.* Assemble, test, stow, and...

| style="border: 1px solid #25185d; text-align: center" |MN
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Minemen test, maintain, and repair mines

Naval mine

and their components. They are responsible for assembling, testing, and delivering mines to the planting agent. They maintain minehandling and minelaying equipment.
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| style="border: 1px solid #25185d;" | Missile Technician
Missile Technician (US Navy)
Missile Technician is a United States Navy occupational rating.Missile Technicians Operate, test, maintain, troubleshoot, and repair ballistic missile weapons systems...

| style="border: 1px solid #25185d; text-align: center" |MT
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Missile Technicians operate and maintain the UGM-133 Trident II D5 missile

Missile

Though a missile may be any thrown or launched object, it colloquially almost always refers to a self-propelled guided weapon system.-Etymology:The word missile comes from the Latin verb mittere, meaning "to send"...

Strategic Weapon System (SWS) carried aboard ballistic missile submarine

Submarine

A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

s and at Strategic Weapons facilities. Missile Technicians operate and maintain electronic

Electricity

, mechanical

Machine

, hydraulic and pneumatic Strategic Weapon subsytems, test and operate the MK98 fire-control system

Fire-control system

and MK 6 guidance system

Inertial measurement unit

An inertial measurement unit, or IMU, is an electronic device that measures and reports on a craft's velocity, orientation, and gravitational forces, using a combination of accelerometers and gyroscopes. IMUs are typically used to maneuver aircraft, including UAVs, among many others, and...

, perform classified targeting operations, and provide physical security to nuclear weapon systems.
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| style="border: 1px solid #25185d;" | Musician
Musician (US Navy)
Musician is a United States Navy occupational rating.Musicians perform on one or more designated instruments to provide musical services onboard ships and at Armed Forces bases to inspire patriotism, elevate esprit de corps, enhance retention, and foster pride in the Naval service; provide...

| style="border: 1px solid #25185d; text-align: center" |MU
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Musicians play in official Navy bands

United States Navy Band

The United States Navy Band, based at the historic Washington Navy Yard in Washington, D.C., has served the nation as the official musical organization of the United States Navy since 1925...

and special groups such as jazz

Jazz

Jazz is a musical style that originated at the beginning of the 20th century in African American communities in the Southern United States. It was born out of a mix of African and European music traditions. From its early development until the present, jazz has incorporated music from 19th and 20th...

bands, dance

Dance

Dance is an art form that generally refers to movement of the body, usually rhythmic and to music, used as a form of expression, social interaction or presented in a spiritual or performance setting....

bands and small ensembles. They give concerts and provide music

Music

Music is an art form whose medium is sound and silence. Its common elements are pitch , rhythm , dynamics, and the sonic qualities of timbre and texture...

for military ceremonies, religious services, parade

Parade

A parade is a procession of people, usually organized along a street, often in costume, and often accompanied by marching bands, floats or sometimes large balloons. Parades are held for a wide range of reasons, but are usually celebrations of some kind...

s, receptions

Party

A party is a gathering of people who have been invited by a host for the purposes of socializing, conversation, or recreation. A party will typically feature food and beverages, and often music and dancing as well....

and dance

Dance

s. Official unit bands usually do not include stringed instruments

String instrument

A string instrument is a musical instrument that produces sound by means of vibrating strings. In the Hornbostel-Sachs scheme of musical instrument classification, used in organology, they are called chordophones...

, but each musician must be able to play at least one brass

Brass instrument

A brass instrument is a musical instrument whose sound is produced by sympathetic vibration of air in a tubular resonator in sympathy with the vibration of the player's lips...

, woodwind

Woodwind instrument

A woodwind instrument is a musical instrument which produces sound when the player blows air against a sharp edge or through a reed, causing the air within its resonator to vibrate...

or percussion instrument

Percussion instrument

A percussion instrument is any object which produces a sound when hit with an implement or when it is shaken, rubbed, scraped, or otherwise acted upon in a way that sets the object into vibration...

| style="border: 1px solid #25185d;" | Navy Counselor
Navy Counselor
Navy Counselor is a United States Navy occupational rating.-General Description:Navy Counselors are concerned with recruiting, career information, and counseling. They are responsible for enlisted recruiting and career information programs, and supervise and coordinate interviewing and counseling...

| style="border: 1px solid #25185d; text-align: center" |NC
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" | (Career)
(Recruiter)
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" | NC(C)
NC(R)
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Navy Counselors offer vocational guidance to Navy personnel — individually and in groups — aboard ships and at shore facilities. They assess the interests, aptitudes, abilities and personalities of individuals and assist them in reaching their full potential. They are responsible directly to the command triumvirate (CO, XO, CMC) and report on many items such as retention, attrition, advancement, testing and various other facets of the career development program. Additionally, it is their keen eye and attention to detail that ensure personnel throughout the command are updated on current Navy policies in regards to career management, off duty education and administrative procedures, among various other responsibilities.
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| style="border: 1px solid #25185d;" | Operations Specialist
Operations Specialist (US Navy)
Operations Specialist is a United States Navy occupational rating.-Brief history:The rating started from the Radarman rating. When the Radarman rating was split up to ET's,OS's and EW's the rating badge continued to be used by the Operations Specialist. It symbolizes an...

| style="border: 1px solid #25185d; text-align: center" |OS
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Operations Specialists operate radar

Radar

, navigation

Radio navigation

Radio navigation or radionavigation is the application of radio frequencies to determine a position on the Earth. Like radiolocation, it is a type of radiodetermination.The basic principles are measurements from/to electric beacons, especially...

and communications equipment

Military communications

Historically, the first military communications had the form of sending/receiving simple signals . Respectively, the first distinctive tactics of military communications were called Signals, while units specializing in those tactics received the Signal Corps name...

in the shipboard combat information centers

Combat Information Center

The Operations Room is the tactical center of a warship or AWAC aircraft providing processed information for command and control of the near battle space or 'area of operations'...

(CICs) or bridges

Bridge (ship)

The bridge of a ship is the room or platform from which the ship can be commanded. When a ship is underway the bridge is manned by an OOW aided usually by an AB acting as lookout...

. They detect and track ships, planes, and missiles. They operate and maintain identification friend or foe

Identification friend or foe

In telecommunications, identification, friend or foe is an identification system designed for command and control. It is a system that enables military and national interrogation systems to identify aircraft, vehicles, or forces as friendly and to determine their bearing and range from the...

(IFF) systems, electronic countermeasures

Electronic countermeasures

An electronic countermeasure is an electrical or electronic device designed to trick or deceive radar, sonar or other detection systems, like infrared or lasers. It may be used both offensively and defensively to deny targeting information to an enemy...

(ECM) equipment and radio-telephones

Radiotelephone

A radiotelephone is a communications system for transmission of speech over radio. Radiotelephone systems are not necessarily interconnected with the public "land line" telephone network. "Radiotelephone" is often used to describe the usage of radio spectrum where it is important to distinguish the...

| style="border: 1px solid #25185d;" | Personnel Specialist
Personnel Specialist (US Navy)
Personnel Specialist is a United States Navy occupational rating.Personnel Specialists:*Established as a merger of Personnelman and Disbursing Clerk ratings on October 1, 2005...

| style="border: 1px solid #25185d; text-align: center" |PS
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Personnel Specialists provide enlisted personnel with information and counseling about Navy jobs, opportunities for general education

Education

Education in its broadest, general sense is the means through which the aims and habits of a group of people lives on from one generation to the next. Generally, it occurs through any experience that has a formative effect on the way one thinks, feels, or acts...

and training

Training

The term training refers to the acquisition of knowledge, skills, and competencies as a result of the teaching of vocational or practical skills and knowledge that relate to specific useful competencies. It forms the core of apprenticeships and provides the backbone of content at institutes of...

, and promotion requirements. They assist enlisted members' families with legal aid

Legal aid

Legal aid is the provision of assistance to people otherwise unable to afford legal representation and access to the court system. Legal aid is regarded as central in providing access to justice by ensuring equality before the law, the right to counsel and the right to a fair trial.A number of...

or reassignments in hardship situations. Personnel Specialists keep records up to date, prepare reports, type letters and maintain files.
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| style="border: 1px solid #25185d;" | Quartermaster
Quartermaster
Quartermaster refers to two different military occupations depending on if the assigned unit is land based or naval.In land armies, especially US units, it is a term referring to either an individual soldier or a unit who specializes in distributing supplies and provisions to troops. The senior...

| style="border: 1px solid #25185d; text-align: center" |QM
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Quartermasters assist the navigator

Navigator

A navigator is the person on board a ship or aircraft responsible for its navigation. The navigator's primary responsibility is to be aware of ship or aircraft position at all times. Responsibilities include planning the journey, advising the Captain or aircraft Commander of estimated timing to...

and officer of the deck

Officer of the Deck

Officer of the deck is a position in the United States Navy and United States Coast Guard that confers certain authority and responsibility. The officer of the deck on a ship is the direct representative of the captain, having responsibility for the ship.-Overview:In port, the OOD is stationed on...

(OOD), steer the ship

Ship

Since the end of the age of sail a ship has been any large buoyant marine vessel. Ships are generally distinguished from boats based on size and cargo or passenger capacity. Ships are used on lakes, seas, and rivers for a variety of activities, such as the transport of people or goods, fishing,...

, take radar

Radar

bearings

Bearing (navigation)

In marine navigation, a bearing is the direction one object is from another object, usually, the direction of an object from one's own vessel. In aircraft navigation, a bearing is the actual compass direction of the forward course of the aircraft...

and ranges, make depth soundings

Depth Sounding

Depth sounding refers to a historical nautical term for measuring depth; it is often referred to simply as sounding. Sounding is finding the depth of a given point in a body of water. Sounding data is used in bathymetry to make maps of the floor of a body of water. Soundings were traditionally...

and celestial

Celestial navigation

Celestial navigation, also known as astronavigation, is a position fixing technique that has evolved over several thousand years to help sailors cross oceans without having to rely on estimated calculations, or dead reckoning, to know their position...

observations, plot courses

Course (sail)

In sailing, a course is the lowermost sail on a mast.This term is used predominantly in the plural to describe the lowest sails on a square rigged vessel, i.e., a ship's courses would be the foresail, mainsail, and, on the rare occasions in which one is shipped, mizen...

| style="border: 1px solid #25185d;" | Religious Programs Specialist
Religious Programs Specialist
Religious Program Specialist is a United States Navy occupational rating. Religious Program Specialists assist Navy chaplains. Religious program specialists provide support to Navy chaplains in developing programs to meet the needs of Navy, Marine Corps and Coast Guard personnel and their families...

| style="border: 1px solid #25185d; text-align: center" |RP
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Religious Programs Specialists assist Navy chaplains

United States Navy Chaplain Corps

The Chaplain Corps of the United States Navy consists of ordained clergy who are commissioned naval officers. Their principal purpose is to "promote the spiritual, religious, moral, and personal well-being of the members of the Department of the Navy," which includes the Navy and the United States...

with administrative and budget

Budget

A budget is a financial plan and a list of all planned expenses and revenues. It is a plan for saving, borrowing and spending. A budget is an important concept in microeconomics, which uses a budget line to illustrate the trade-offs between two or more goods...

ary tasks. They serve as custodians of chapel

Chapel

A chapel is a building used by Christians as a place of fellowship and worship. It may be part of a larger structure or complex, such as a church, college, hospital, palace, prison or funeral home, located on board a military or commercial ship, or it may be an entirely free-standing building,...

funds, keep religious documents and stay in contact with religious and community agencies. They prepare devotional and religious education

Education

al materials, set up volunteer programs, operate shipboard libraries, supervise chaplains' offices and perform administrative, clerical and secretarial duties. They train personnel in religious programs and publicize religious activities.
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| style="border: 1px solid #25185d;" | Special Warfare Boat Operator
Special Warfare Boat Operator
Special Warfare Boat Operator is a United States Navy occupational rating.Special Warfare Boat Operators drive fast speedboats down narrow, winding rivers, or the open ocean while performing; High speed, medium range, all weather insertion/extraction of Special Operations Forces, maritime...

| style="border: 1px solid #25185d; text-align: center" |SB
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Special Warfare Boat Operators drive fast speedboats

Motorboat

A motorboat is a boat which is powered by an engine. Some motorboats are fitted with inboard engines, others have an outboard motor installed on the rear, containing the internal combustion engine, the gearbox and the propeller in one portable unit.An inboard/outboard contains a hybrid of a...

down narrow, winding river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

s, or the open ocean

Ocean

An ocean is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas.More than half of this area is over 3,000...

while performing high speed, medium range, or all weather insertion/extraction of Special Operations Forces

Special forces

Special forces, or special operations forces are terms used to describe elite military tactical teams trained to perform high-risk dangerous missions that conventional units cannot perform...

. They participate in maritime interdiction operations, tactical swimmer operations, intelligence

Intelligence

Intelligence has been defined in different ways, including the abilities for abstract thought, understanding, communication, reasoning, learning, planning, emotional intelligence and problem solving....

collection, operation deception

Deception

Deception, beguilement, deceit, bluff, mystification, bad faith, and subterfuge are acts to propagate beliefs that are not true, or not the whole truth . Deception can involve dissimulation, propaganda, and sleight of hand. It can employ distraction, camouflage or concealment...

, and Coast

Coast

A coastline or seashore is the area where land meets the sea or ocean. A precise line that can be called a coastline cannot be determined due to the dynamic nature of tides. The term "coastal zone" can be used instead, which is a spatial zone where interaction of the sea and land processes occurs...

al patrol

Patrol

A patrol is commonly a group of personnel, such as police officers or soldiers, that are assigned to monitor a specific geographic area.- Military :...

.
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| style="border: 1px solid #25185d;" | Ship's Serviceman
Ship's Serviceman
Ship's Serviceman is a rating in the US Navy.-General information:Ship's servicemen manage and operate shipboard retail and service activities using microcomputers. This includes ship's stores, vending machines and video games, barber shops, laundry and dry cleaning plants, and tailor shops...

| style="border: 1px solid #25185d; text-align: center" |SH
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Ship's Servicemen manage barber shops

Barber

A barber is someone whose occupation is to cut any type of hair, and to shave or trim the beards of men. The place of work of a barber is generally called a barbershop....

, tailor shops

Tailor

A tailor is a person who makes, repairs, or alters clothing professionally, especially suits and men's clothing.Although the term dates to the thirteenth century, tailor took on its modern sense in the late eighteenth century, and now refers to makers of men's and women's suits, coats, trousers,...

, ships' uniform

Uniform

A uniform is a set of standard clothing worn by members of an organization while participating in that organization's activity. Modern uniforms are worn by armed forces and paramilitary organizations such as police, emergency services, security guards, in some workplaces and schools and by inmates...

stores, laundries

Laundry

Laundry is a noun that refers to the act of washing clothing and linens, the place where that washing is done, and/or that which needs to be, is being, or has been laundered...

, dry cleaning

Dry cleaning

Dry cleaning is any cleaning process for clothing and textiles using a chemical solvent other than water. The solvent used is typically tetrachloroethylene , abbreviated "perc" in the industry and "dry-cleaning fluid" by the public...

plants and cobbler shops

Shoemaking

Shoemaking is the process of making footwear. Originally, shoes were made one at a time by hand. Traditional handicraft shoemaking has now been largely superseded in volume of shoes produced by industrial mass production of footwear, but not necessarily in quality, attention to detail, or...

. They serve as clerks in exchanges

Base exchange

A Base Exchange is a type of retail store operating on United States military installations worldwide...

, gas stations, warehouses, and commissary

Commissary

A commissary is someone delegated by a superior to execute a duty or an office; in a formal, legal context, one who has received power from a legitimate superior authority to pass judgment in a certain cause or to take information concerning it.-Word history:...

| style="border: 1px solid #25185d;" | Special Warfare Operator
United States Navy SEALs
The United States Navy's Sea, Air and Land Teams, commonly known as Navy SEALs, are the U.S. Navy's principal special operations force and a part of the Naval Special Warfare Command as well as the maritime component of the United States Special Operations Command.The acronym is derived from their...

| style="border: 1px solid #25185d; text-align: center" |SO
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Special Warfare Operators are Navy SEALs

United States Navy SEALs

The United States Navy's Sea, Air and Land Teams, commonly known as Navy SEALs, are the U.S. Navy's principal special operations force and a part of the Naval Special Warfare Command as well as the maritime component of the United States Special Operations Command.The acronym is derived from their...

. They are trained to jump from airplanes at high altitudes

HALO/HAHO

Military free-fall form of insertion.PurposeDelivering personnel, equipment, or supplies.HALOHigh-Altitude/Low-OpeningHAHOHigh-Altitude/High-OpeningOrigins...

and open their parachutes at low proximity to the earth into frigid waters. They jump from helicopters travelling 30 knots at 30 feet over the water with no parachute

Parachute

A parachute is a device used to slow the motion of an object through an atmosphere by creating drag, or in the case of ram-air parachutes, aerodynamic lift. Parachutes are usually made out of light, strong cloth, originally silk, now most commonly nylon...

. In addition Special Warfare Operators oversee ocean-borne mine

Naval mine

disposal, carry out direct action raids against military targets, conduct reconnaissance

Reconnaissance

Reconnaissance is the military term for exploring beyond the area occupied by friendly forces to gain information about enemy forces or features of the environment....

, and secure beachheads for invading amphibious

Amphibious warfare

Amphibious warfare is the use of naval firepower, logistics and strategy to project military power ashore. In previous eras it stood as the primary method of delivering troops to non-contiguous enemy-held terrain...

| style="border: 1px solid #25185d;" | Sonar Technician
Sonar Technician
Sonar Technician is a United States Navy occupational rating.ST's are responsible for underwater surveillance. They assist in safe navigation and aid in search, rescue and attack operations. They operate and repair sonar equipment...

| style="border: 1px solid #25185d; text-align: center" |ST
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |(Surface)
(Subsurface)
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |STG
STS
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Sonar Technicians are responsible for underwater surveillance

Surveillance

Surveillance is the monitoring of the behavior, activities, or other changing information, usually of people. It is sometimes done in a surreptitious manner...

. They assist in safe navigation

Navigation

and aid in search and rescue

Search and rescue

Search and rescue is the search for and provision of aid to people who are in distress or imminent danger.The general field of search and rescue includes many specialty sub-fields, mostly based upon terrain considerations...

and attack operations. They operate and repair sonar

Sonar

Sonar is a technique that uses sound propagation to navigate, communicate with or detect other vessels...

equipment and jam enemy sonars. Sonar Technicians operate, maintain and repair sonar systems, antisubmarine warfare

Anti-submarine warfare

Anti-submarine warfare is a branch of naval warfare that uses surface warships, aircraft, or other submarines to find, track and deter, damage or destroy enemy submarines....

fire control equipment

Fire-control system

and other various equipment associated with underwater detection, counter-detection, warfare and communications.
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| style="border: 1px solid #25185d;" | Yeoman
Yeoman (US Navy)
Yeoman is the oldest rating in the United States Navy. Yeomen perform secretarial and clerical work. They deal with visitors, telephone calls and incoming mail. They organize files and operate copy machines and order and distribute supplies...

| style="border: 1px solid #25185d; text-align: center" |YN
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Yeomen perform secretarial and clerical

Clerk

work. They deal with visitors, telephone

Telephone

calls and incoming mail

Mail

Mail, or post, is a system for transporting letters and other tangible objects: written documents, typically enclosed in envelopes, and also small packages are delivered to destinations around the world. Anything sent through the postal system is called mail or post.In principle, a postal service...

. They organize files and operate copy machines and order and distribute supplies. They write and type business and social letters, notices, directives, forms and reports.
|}

Engineering and hull ratings

Insignia	General rating	Abbreviation	Service rating	Abbreviation
	Damage Controlman Damage Controlman Damage Controlman are the Navy's and Coast Guard’s maintenance and emergency repair specialist.Coast Guard Damage Controlmen assigned to cutters are responsible for maintaining watertight integrity, emergency equipment associated with firefighting and Shipboard flooding; plumbing repairs; welding...

Damage control

Damage control is a term used in the Merchant Marine, maritime industry and navies for the emergency control of situations that may hazard the sinking of a ship...

, ship stability, fire-fighting. They also prepare defenses against chemical, biological and radiological (CBR) warfare

Weapons of mass destruction

A weapon of mass destruction is a weapon that can kill and bring significant harm to a large number of humans and/or cause great damage to man-made structures , natural structures , or the biosphere in general...

attacks. They instruct personnel in damage control and CBR defense and repair damage-control equipment and systems.
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| style="border: 1px solid #25185d;" | Electrician's Mate
Electrician's Mate
Electrician's Mate is a United States Navy and United States Coast Guard occupational rating.Electrician's Mates stand watch on generators, switchboards, control equipment and electrical equipment; operate and perform organizational and intermediate maintenance on power and lighting circuits,...

| style="border: 1px solid #25185d; text-align: center" |EM
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Electrician's Mates are responsible for the operation and repair of a ship's or station's electrical power plant

Power station

A power station is an industrial facility for the generation of electric energy....

and electrical equipment. They also maintain and repair power and lighting circuits

Electrical network

An electrical network is an interconnection of electrical elements such as resistors, inductors, capacitors, transmission lines, voltage sources, current sources and switches. An electrical circuit is a special type of network, one that has a closed loop giving a return path for the current...

, distribution switchboards

Distribution board

A distribution board is a component of an electricity supply system which divides an electrical power feed into subsidiary circuits, while providing a protective fuse or circuit breaker for each circuit, in a common enclosure...

, generators

Electrical generator

In electricity generation, an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric charge to flow through an external electrical circuit. It is analogous to a water pump, which causes water to flow...

, motors

Electric motor

An electric motor converts electrical energy into mechanical energy.Most electric motors operate through the interaction of magnetic fields and current-carrying conductors to generate force...

and other electrical equipment. Electrician's Mates are employed onboard nuclear powered ships

Nuclear marine propulsion

Nuclear marine propulsion is propulsion of a ship by a nuclear reactor. Naval nuclear propulsion is propulsion that specifically refers to naval warships...

to maintain the control subsystems in nuclear reactor

Nuclear reactor

s.
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| style="border: 1px solid #25185d;" | Engineman
Engineman
Engineman is a United States Navy occupational rating.-Scope of Rating:Enginemen operate, service and repair internal combustion engines used to power some of the Navy's ships and most of the Navy's small craft. Most Enginemen work with diesel engines...

| style="border: 1px solid #25185d; text-align: center" |EN
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Enginemen are responsible for internal diesel and gasoline engines. They also maintain refrigeration

Refrigeration

, air-conditioning, distilling-plant

Distillation

Distillation is a method of separating mixtures based on differences in volatilities of components in a boiling liquid mixture. Distillation is a unit operation, or a physical separation process, and not a chemical reaction....

| style="border: 1px solid #25185d;" | Explosive Ordnance Disposal
| style="border: 1px solid #25185d; text-align: center" |EOD
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Explosive Ordnance Disposal Technicians locate, identify, render safe and dispose of all forms of ordnance (conventional

Explosive material

An explosive material, also called an explosive, is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure...

, nuclear

Nuclear weapon

A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission or a combination of fission and fusion. Both reactions release vast quantities of energy from relatively small amounts of matter. The first fission bomb test released the same amount...

, chemical

Chemical warfare

Chemical warfare involves using the toxic properties of chemical substances as weapons. This type of warfare is distinct from Nuclear warfare and Biological warfare, which together make up NBC, the military acronym for Nuclear, Biological, and Chemical...

, biological

Biological warfare

Biological warfare is the use of biological toxins or infectious agents such as bacteria, viruses, and fungi with intent to kill or incapacitate humans, animals or plants as an act of war...

, military, and improvised

Improvised explosive device

An improvised explosive device , also known as a roadside bomb, is a homemade bomb constructed and deployed in ways other than in conventional military action...

) both U.S.

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

and foreign made. Parachute

Parachute

or Helicopter

Helicopter

insertion and deep-sea diving

Diving

Diving is the sport of jumping or falling into water from a platform or springboard, sometimes while performing acrobatics. Diving is an internationally-recognized sport that is part of the Olympic Games. In addition, unstructured and non-competitive diving is a recreational pastime.Diving is one...

capabilities are sometimes necessary to perform this mission. In addition to working closely with other military services, EOD technicians occasionally assist civilian law enforcement agencies

Law enforcement agency

In North American English, a law enforcement agency is a government agency responsible for the enforcement of the laws.Outside North America, such organizations are called police services. In North America, some of these services are called police while others have other names In North American...

.
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| style="border: 1px solid #25185d;" | Gas Turbine System Technician
Gas Turbine System Technician
Gas Turbine System Technician is a United States Navy occupational rating.Gas Turbine Systems Technicians operate, repair, and perform organizational and intermediate maintenance on gas turbine engines, main propulsion machinery , assigned auxiliary equipment, propulsion control systems, assigned...

| style="border: 1px solid #25185d; text-align: center" |GS
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |(Electrical)
(Mechanical)
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |GSE
GSM
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Gas Turbine System Technician are responsible for all gas turbine engines

Gas turbine

. They maintain propulsion machinery

Marine propulsion

Marine propulsion is the mechanism or system used to generate thrust to move a ship or boat across water. While paddles and sails are still used on some smaller boats, most modern ships are propelled by mechanical systems consisting a motor or engine turning a propeller, or less frequently, in jet...

, including gear

Gear

A gear is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part in order to transmit torque. Two or more gears working in tandem are called a transmission and can produce a mechanical advantage through a gear ratio and thus may be considered a simple machine....

s, shafting and controllable pitch propeller

Propeller

A propeller is a type of fan that transmits power by converting rotational motion into thrust. A pressure difference is produced between the forward and rear surfaces of the airfoil-shaped blade, and a fluid is accelerated behind the blade. Propeller dynamics can be modeled by both Bernoulli's...

s, assigned auxiliary equipment propulsion control systems, electrical and electronic circuitry

Electrical network

up to the printed circuit module, and alarm and warning circuitry

Alarm circuit

A dry loop is an unconditioned leased pair of telephone wire from a Telco. The pair does not have a dial-tone or "battery" , as opposed to a "wet pair" .A dry pair was originally used with a security system, but more recently may also be used with DSL equipment or an...

. They handle administrative tasks related to gas turbine propulsion system

Gas turbine

operation and maintenance

Maintenance, Repair and Operations

Maintenance, repair, and operations or maintenance, repair, and overhaul involves fixing any sort of mechanical or electrical device should it become out of order or broken...

.
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| style="border: 1px solid #25185d;" | Hull Maintenance Technician
Hull Maintenance Technician
Hull Maintenance Technician is a United States Navy occupational rating.Hull Maintenance Technicians plan, supervise, and perform tasks necessary for fabrication, installation and repair of all types of shipboard structures, plumbing, sheet metal fabrication, carpentry and piping systems;...

| style="border: 1px solid #25185d; text-align: center" |HT
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
| style="border: 1px solid #25185d; text-align: center; font-size: x-small" |
|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Hull Maintenance Technicians are responsible for maintaining ships' hulls

Hull (watercraft)

A hull is the watertight body of a ship or boat. Above the hull is the superstructure and/or deckhouse, where present. The line where the hull meets the water surface is called the waterline.The structure of the hull varies depending on the vessel type...

, fittings

Compression fitting

Compression fittings are used in plumbing and electrical conduit systems to join two tubes or thin-walled pipes together. In instances where two pipes made of dissimilar materials are to be joined , the fittings will also be made of one or more compatible materials appropriate for the connection...

, piping systems

Piping and plumbing fittings

Fittings are used in pipe and plumbing systems to connect straight pipe or tubing sections, to adapt to different sizes or shapes, and for other purposes, such as regulating or measuring fluid flow...

and machine

Machine

ry. They install and maintain all shipboard and shore based plumbing and piping

Plumbing

Plumbing is the system of pipes and drains installed in a building for the distribution of potable drinking water and the removal of waterborne wastes, and the skilled trade of working with pipes, tubing and plumbing fixtures in such systems. A plumber is someone who installs or repairs piping...

systems. They look after a vessel's safety

Safety

Safety is the state of being "safe" , the condition of being protected against physical, social, spiritual, financial, political, emotional, occupational, psychological, educational or other types or consequences of failure, damage, error, accidents, harm or any other event which could be...

and survival equipment and perform many tasks related to damage control

Damage control

Damage control is a term used in the Merchant Marine, maritime industry and navies for the emergency control of situations that may hazard the sinking of a ship...

.
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| style="border: 1px solid #25185d;" | Interior Communications Electrician
Interior Communications Electrician
Interior Communications Electricians are a rate in the United States Navy and the United States Marine Corps. They operate and perform organizational and intermediate maintenance on alarm, warning, and indicator systems; interior communications; and ship's control, entertainment, and navigation...

| style="border: 1px solid #25185d; text-align: center" |IC
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Interior Communications Electricians operate and repair electronic devices used in the ship's interior communications system

Communications system

In telecommunication, a communications system is a collection of individual communications networks, transmission systems, relay stations, tributary stations, and data terminal equipment usually capable of interconnection and interoperation to form an integrated whole...

s, SITE TV systems, 1MC

1MC

1MC is the term for the shipboard public address circuits on naval vessels of the United States. This provides a means of transmitting general information and orders to all internal ship spaces and topside areas, and is loud enough that all embarked personnel are able to hear it...

(public address system), electronic megaphone

Megaphone

A megaphone, speaking-trumpet, bullhorn, blowhorn, or loud hailer is a portable, usually hand-held, cone-shaped horn used to amplify a person’s voice or other sounds towards a targeted direction. This is accomplished by channelling the sound through the megaphone, which also serves to match the...

s and other announcing equipment. They are responsible for the gyrocompass

Gyrocompass

A gyrocompass is a type of non-magnetic compass which bases on a fast-spinning disc and rotation of our planet to automatically find geographical direction...

| style="border: 1px solid #25185d;" | Machinist's Mate
Machinist's Mate
Machinist's Mate is a rating in the United States Navy's engineering community.- Description :According to the Bureau of Naval Personnel , the job of an MM is to "operate, maintain, and repair ship propulsion machinery, auxiliary equipment, and outside machinery, such as: steering engine,...

| style="border: 1px solid #25185d; text-align: center" |MM
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Machinist's Mates are responsible for the continuous operation of the many engines, compressors, gears, refrigeration

Refrigeration

, and air-conditioning equipment along with other types of machinery onboard ships and shore installations. They are responsible for the ship's steam propulsion and auxiliary equipment and the outside (deck) machinery. Machinist's Mates are deployed onboard nuclear powered ships

Nuclear marine propulsion

Nuclear marine propulsion is propulsion of a ship by a nuclear reactor. Naval nuclear propulsion is propulsion that specifically refers to naval warships...

to maintain the machinery and piping in nuclear reactor

Nuclear reactor

s. Some nuclear machinists mates (Engineering Laboratory Technicians) receive additional specialization in Health Physics

Health physics

Health physics is a field of science concerned with radiation physics and radiation biology with the goal of providing technical information and proper techniques regarding the safe use of ionizing radiation...

| style="border: 1px solid #25185d;" | Machinery Repairman
Machinery Repairman
Machinery Repairman is a United States Navy occupational rating.Machinery Repairmen perform organizational and intermediate maintenance on assigned equipment and in support of other ships, requiring the skillful use of lathes, milling machines, boring mills, grinders, power hack saws, drill...

| style="border: 1px solid #25185d; text-align: center" |MR
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Machinery Repairmen are skilled machine tool operators. They make replacement parts and repair or overhaul a ship's engine auxiliary equipment, such as evaporators, air compressors

Gas compressor

and pumps. They repair deck equipment, including winches, hoists

Hoist (device)

A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium. The load is attached to the hoist by means of a...

, condensers

Condenser (steam turbine)

A surface condenser is a commonly used term for a water-cooled shell and tube heat exchanger installed on the exhaust steam from a steam turbine in thermal power stations. These condensers are heat exchangers which convert steam from its gaseous to its liquid state at a pressure below atmospheric...

, and heat exchange devices

Heat exchanger

A heat exchanger is a piece of equipment built for efficient heat transfer from one medium to another. The media may be separated by a solid wall, so that they never mix, or they may be in direct contact...

. Shipboard Machinery Repairmen frequently operate main propulsion machinery

Marine propulsion

| style="border: 1px solid #25185d;" | Navy Diver
United States Navy Diver
A Navy Diver refers to a member of the community of Unrestricted Line Officer Officers, Medical Corps Officers and enlisted personnel in the United States Navy who are qualified in underwater open/closed circuit breathing apparatus, deep sea type diving apparatus and saturation diving. Personnel...

| style="border: 1px solid #25185d; text-align: center" |ND
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|- style="border: 1px solid #25185d; background-color: #FFFFFF" |
| style="border: 1px solid #25185d;" colspan="4" valign="top" |Navy Divers are responsible for a wide variety of tasks like underwater ship maintenance, construction, explosive ordnance disposal (EOD), and underwater rescue

Diver rescue

thumb|right|Beaching a casualty while providing artificial respirationDiver rescue, following an accident, is the process of avoiding or limiting further exposure to diving hazards and bringing a SCUBA diver to safety...

. They are assigned to Naval Special Warfare Units

United States Naval Special Warfare Command

The United States Naval Special Warfare Command was commissioned on April 16, 1987, at Naval Amphibious Base Coronado in San Diego, California...

to provide diving technical expertise and supervisory support to all submersible operations.
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Examples of discontinued and changed ratings (1990–Present)

General rating	Abbreviation	Status
Aviation Storekeeper	AK	Merged into Storekeeper on 1 January 2003.
Aviation Structural Mechanic Aviation Structural Mechanic Aviation Structural Mechanic is a United States Navy occupational rating.-Duties:Aviation Structural Mechanics maintain aircraft airframe and structural components flight surfaces and controls hydraulic and pneumatic control and actuating systems and mechanisms, landing gear systems, air... (Hydraulics) Aviation Structural Mechanic Aviation Structural Mechanic Aviation Structural Mechanic is a United States Navy occupational rating.-Duties:Aviation Structural Mechanics maintain aircraft airframe and structural components flight surfaces and controls hydraulic and pneumatic control and actuating systems and mechanisms, landing gear systems, air... (Structures)	AMH AMS	Merged into Aviation Structural Mechanic Aviation Structural Mechanic Aviation Structural Mechanic is a United States Navy occupational rating.-Duties:Aviation Structural Mechanics maintain aircraft airframe and structural components flight surfaces and controls hydraulic and pneumatic control and actuating systems and mechanisms, landing gear systems, air... on 1 March 2001.
Aviation Support Equipment Technician Aviation Support Equipment Technician Aviation Support Equipment Technician is a United States Navy occupational rating. The United States Marine Corps currently maintains 3 separate Aviation Support Equipment military occupational specialties... (Electrical) Aviation Support Equipment Technician Aviation Support Equipment Technician Aviation Support Equipment Technician is a United States Navy occupational rating. The United States Marine Corps currently maintains 3 separate Aviation Support Equipment military occupational specialties... (Hydraulics and Structure) Aviation Support Equipment Technician Aviation Support Equipment Technician Aviation Support Equipment Technician is a United States Navy occupational rating. The United States Marine Corps currently maintains 3 separate Aviation Support Equipment military occupational specialties... (Mechanical)	ASE ASH ASM	Merged into Aviation Support Equipment Technician Aviation Support Equipment Technician Aviation Support Equipment Technician is a United States Navy occupational rating. The United States Marine Corps currently maintains 3 separate Aviation Support Equipment military occupational specialties... on 1 March 1990.
Aviation Antisubmarine Warfare Technician Aviation Fire Control Technician	AX AQ	Merged into Aviation Electronics Technician on 1 January 1991.
Boiler Technician	BT	Merged into Machinist's Mate Machinist's Mate Machinist's Mate is a rating in the United States Navy's engineering community.- Description :According to the Bureau of Naval Personnel , the job of an MM is to "operate, maintain, and repair ship propulsion machinery, auxiliary equipment, and outside machinery, such as: steering engine,... s on 1 October 1996.
Cryptologic Technician Cryptologic technician Cryptologic Technician is a United States Navy enlisted rating or job specialty. The CT community performs a wide range of tasks in support of the national intelligence effort, with an emphasis on cryptology and signal intelligence related products.... (Communications) Cryptologic Technician Cryptologic technician Cryptologic Technician is a United States Navy enlisted rating or job specialty. The CT community performs a wide range of tasks in support of the national intelligence effort, with an emphasis on cryptology and signal intelligence related products.... (Administration)	CTO CTA	Merged into Information Systems Technician Information Systems Technician Information Systems Technician refers to an industrial occupation whose responsibility is maintaining communications and computer systems... on 1 March 2006. Merged into Yeoman on 1 January 2009
Disbursing Clerk	DK	Merged into Personnel Specialist Personnel Specialist (US Navy) Personnel Specialist is a United States Navy occupational rating.Personnel Specialists:*Established as a merger of Personnelman and Disbursing Clerk ratings on October 1, 2005... on 1 October 2005.
Draftsman	DM	Merged into Mass Communication Specialist on 1 July 2006.
Data Systems Technician Data Systems Technician The United States Navy occupational rating of Data Systems Technician was a designation given by the Bureau of Naval Personnel to enlisted members who satisfactorily complete initial Data Systems Technician "A" school training.It was established in 1961 and merged into the Electronics Technician...	DS	Merged into Electronics Technician Electronics Technician Electronics Technician is a common enlisted occupation in many Militaries. Common duties for ETs include repair, calibration, and basic maintenance of most electronic equipment.-US Navy:... and Fire Controlman Fire Controlman Fire Controlman is a United States Navy occupational rating.Fire Controlmen provide system employment recommendations; perform organizational and intermediate maintenance on digital computer equipment, subsystems, and systems; operate and maintain combat and weapons direction systems,... on 1 October 1998.
Dental Technican	DT	Merged into Hospital Corpsman on 30 August 2005.
Electronic Warfare Technician	EW	Merged into Cryptologic technician Cryptologic technician Cryptologic Technician is a United States Navy enlisted rating or job specialty. The CT community performs a wide range of tasks in support of the national intelligence effort, with an emphasis on cryptology and signal intelligence related products.... on 1 October 2003.
Journalist	JO	Merged into Mass Communication Specialist on 1 July 2006.
Lithographer	LI	Merged into Mass Communication Specialist on 1 July 2006.
Mess Management Specialist	MS	Changed to Culinary Specialist Culinary Specialist (US Navy) Culinary Specialist is a United States Navy occupational rating. It was formerly the Mess Management Specialist rating until 15 January 2004, and as Steward prior to 1975.-Duties:... on 15 January 2004.
Ocean Systems Technician	OT	Merged into Sonar Technician Sonar Technician Sonar Technician is a United States Navy occupational rating.ST's are responsible for underwater surveillance. They assist in safe navigation and aid in search, rescue and attack operations. They operate and repair sonar equipment... on 1 October 2005.
Postal Clerk	PC	Merged into Logistics Specialist Logistics Specialist The Logistics Specialist is a US Navy rating that was created on October 1, 2009 by the merger of the Storekeeper and Postal Clerk ratings.,-Job Description:... on 1 October 2009. Effective on 1 January 2010.
Photographers Mate	PH	Merged into Mass Communication Specialist on 1 July 2006.
Patternmaker	PM	Disestablished in 1997
Personnelman	PN	Merged into Personnel Specialist Personnel Specialist (US Navy) Personnel Specialist is a United States Navy occupational rating.Personnel Specialists:*Established as a merger of Personnelman and Disbursing Clerk ratings on October 1, 2005... on 1 October 2005.
Radioman Radioman Radioman was a rating for United States Navy and United States Coast Guard enlisted personnel, specializing in communications technology.-History of the rating:...	RM	Submarine: Merged into Electronics Technician Electronics Technician Electronics Technician is a common enlisted occupation in many Militaries. Common duties for ETs include repair, calibration, and basic maintenance of most electronic equipment.-US Navy:... in 1997. Surface: Merged into Information Systems Technician Information Systems Technician Information Systems Technician refers to an industrial occupation whose responsibility is maintaining communications and computer systems... in November 1999.
Storekeeper Storekeeper Storekeeper is an enlisted rating in the United States Coast Guard; until 2009 it was also a United States Navy rating, the most common supply rate in US Navy vs. CS and SH and very much equivalent to the MOS 92 of the US Army...	SK	Merged into Logistics Specialist Logistics Specialist The Logistics Specialist is a US Navy rating that was created on October 1, 2009 by the merger of the Storekeeper and Postal Clerk ratings.,-Job Description:... on 1 October 2009. Effective on 1 January 2010.
Signalman Signalman (rank) Signalman was a U.S. Navy rating for sailors that specialized in visual communication. See Signaller for more about the roles of Signalmen.-U.S. Navy:A signal lamp is a visual signaling device for optical communication...	SM	Disestablished on 4 November 2003.
Torpedoman's Mate Torpedoman's Mate Torpedoman's Mate was a United States Navy occupational rating. It was disestablished on 1 October 2007. Surface Torpedomen were merged into the Gunner's Mate rating, while submarine Torpedomen were merged into the Machinist Mate rating, becoming MM or Machinist Mates...	TM	Submarine: Merged into Machinist's Mate Machinist's Mate Machinist's Mate is a rating in the United States Navy's engineering community.- Description :According to the Bureau of Naval Personnel , the job of an MM is to "operate, maintain, and repair ship propulsion machinery, auxiliary equipment, and outside machinery, such as: steering engine,... in 1997. Surface: Merged into Gunner's Mate Gunner's Mate The United States Navy occupational rating of gunner's mate also known as gunsmens mate is a designation given by the Bureau of Naval Personnel to enlisted sailors who either satisfactorily complete initial Gunner's Mate "A" school training, or who "strike" for the rating as a deck seaman by... on 1 October 2007.

External links

NAVPERS 18068F Navy Enlisted Occupational Standards; also available as a PDF file
Further history and description of the United States Navy ratings
Navy Specialist ratings

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