An
executive officer is generally a person responsible for running an
organizationAn organization is a social group which distributes tasks for a collective goal. The word itself is derived from the Greek word organon, itself derived from the better-known word ergon - as we know `organ` - and it means a compartment for a particular job.There are a variety of legal types of...
, although the exact nature of the role varies depending on the organization.
Administrative law
While there is no clear line between executive or principal and inferior officers, principal officers are high-level officials in the executive branch of U.S. government such as department heads of independent agencies. In
Humphrey's Executor v. United StatesHumphrey's Executor v. United States, , was a United States Supreme Court case decided during the Franklin Delano Roosevelt presidency, regarding the powers that a President of the United States has to remove certain executive officials of a "quasi-legislative," "quasi-judicial" administrative body...
, 295 U.S. 602 (1935), the Court distinguished between executive officers and quasi-legislative or quasi-judicial officers by stating that the former serve at the pleasure of the President and may be removed at his discretion. The latter may be removed only with procedures consistent with statutory conditions enacted by Congress. The decision by the Court was that the
Federal Trade CommissionThe Federal Trade Commission is an independent agency of the United States government, established in 1914 by the Federal Trade Commission Act...
was a quasi-legislative body because of other powers it had, and therefore the President could not fire an FTC member for political reasons. Congress can’t retain removal power over officials with executive function (
Bowsher v. SynarBowsher v. Synar, 478 U.S. 714 struck down the Gramm-Rudman-Hollings Act as an unconstitutional usurpation of executive power by Congress because the law empowered Congress to terminate the United States Comptroller General for certain specified reasons, including "inefficiency, 'neglect of duty,'...
). However, statutes can restrict removal if not purely executive (
Humphrey’s executor), but can't restrict removal of purely executive officer (
Myers v. United StatesMyers v. United States, , was a United States Supreme Court decision ruling that the President has the exclusive power to remove executive branch officials, and does not need the approval of the Senate or any other legislative body....
, 272 U.S. 52 (1926)). The standard is whether restriction "impedes the president’s ability to perform his constitutional duty" (
Morrison v. OlsonMorrison v. Olson, 487 U.S. 654 , was a case that went before the Supreme Court of the United States. By a 7 to 1 margin, the Court ruled that the Independent Counsel Act was constitutional...
, 487 U.S. 654 (1988)).
Corporate law and other legal associations
In
businessA business is an organization engaged in the trade of goods, services, or both to consumers. Businesses are predominant in capitalist economies, where most of them are privately owned and administered to earn profit to increase the wealth of their owners. Businesses may also be not-for-profit...
, the executive officers are the top officers of a corporation, the
chief executive officerA chief executive officer , managing director , Executive Director for non-profit organizations, or chief executive is the highest-ranking corporate officer or administrator in charge of total management of an organization...
(CEO) being the best-known type. The definition varies; for instance, the California Corporate Disclosure Act defines "executive officers" as the five most highly-compensated officers not also sitting on the
board of directorsA board of directors is a body of elected or appointed members who jointly oversee the activities of a company or organization. Other names include board of governors, board of managers, board of regents, board of trustees, and board of visitors...
. In many insurance policies, executive officer means, in the case of a corporation, any Chairman, Chief Executive Officer, Chief Financial Officer, Chief Operating officer, President, or general counsel. In the case of a
sole proprietorshipA sole proprietorship, also known as the sole trader or simply a proprietorship, is a type of business entity that is owned and run by one individual and in which there is no legal distinction between the owner and the business. The owner receives all profits and has unlimited responsibility for...
, an executive officer is the sole proprietor. In the case of a
partnershipA partnership is an arrangement where parties agree to cooperate to advance their mutual interests.Since humans are social beings, partnerships between individuals, businesses, interest-based organizations, schools, governments, and varied combinations thereof, have always been and remain commonplace...
, an executive officer is a managing partner, senior partner, or administrative partner. In the case of a
limited liability companyA limited liability company is a flexible form of enterprise that blends elements of partnership and corporate structures. It is a legal form of company that provides limited liability to its owners in the vast majority of United States jurisdictions...
, an executive officer is any member, manager, or officer.
In the
airlineAn airline provides air transport services for traveling passengers and freight. Airlines lease or own their aircraft with which to supply these services and may form partnerships or alliances with other airlines for mutual benefit...
industry, the Executive Officer, more commonly known as the First Officer, is the second in command of the aircraft. In a fixed wing aircraft the First Officer sits in the right-hand seat but a rotary wing aircraft they sit on the left.
Military
In the units of some military forces, the Executive Officer (XO) is the second-in-command, reporting to the
commanding officerThe 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...
(CO).
United Kingdom
The term is not used in the
British ArmyThe British Army is the land warfare branch of Her Majesty's Armed Forces in the United Kingdom. It came into being with the unification of the Kingdom of England and Scotland into the Kingdom of Great Britain in 1707. The new British Army incorporated Regiments that had already existed in England...
or
Royal MarinesThe Corps of Her Majesty's Royal Marines, commonly just referred to as the Royal Marines , are the marine corps and amphibious infantry of the United Kingdom and, along with the Royal Navy and Royal Fleet Auxiliary, form the Naval Service...
(RM), in which the designation
Second-in-Command (2i/c)The Second-in-Command is the deputy commander of any British Army or Royal Marines unit, from battalion or regiment downwards. He or she is thus the equivalent of an Executive Officer in the United States Army...
is used as a formal appointment. In the
Royal Air ForceThe Royal Air Force is the aerial warfare service branch of the British Armed Forces. Formed on 1 April 1918, it is the oldest independent air force in the world...
(RAF), the term is informally used between officers and airmen, referring to the officer who is second-in-command. It is formally used in the
Royal NavyThe Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...
(RN), however. In smaller vessels, such as
submarineA 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
frigateA frigate is any of several types of warship, the term having been used for ships of various sizes and roles over the last few centuries.In the 17th century, the term was used for any warship built for speed and maneuverability, the description often used being "frigate-built"...
s, the Executive Officer also holds the position of First Lieutenant. Originally, the Second-in-Command was usually referred to as First Lieutenant (or as "Number One"), although it is becoming more common to hear the term XO. On larger ships, in which the XO holds the rank of
CommanderCommander is a naval rank which is also sometimes used as a military title depending on the individual customs of a given military service. Commander is also used as a rank or title in some organizations outside of the armed forces, particularly in police and law enforcement.-Commander as a naval...
, the XO is usually referred to simply as "the Commander". The XO heads the executive department.
United States
In the
United States ArmyThe 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...
and
Marine CorpsThe United States Marine Corps is a branch of the United States Armed Forces responsible for providing power projection from the sea, using the mobility of the United States Navy to deliver combined-arms task forces rapidly. It is one of seven uniformed services of the United States...
, for example, there are XO
billetA billet is a term for living quarters to which a soldier is assigned to sleep. Historically, it referred to a private dwelling that was required to accept the soldier....
s in each
companyA company is a military unit, typically consisting of 80–225 soldiers and usually commanded by a Captain, Major or Commandant. Most companies are formed of three to five platoons although the exact number may vary by country, unit type, and structure...
,
battalionA battalion is a military unit of around 300–1,200 soldiers usually consisting of between two and seven companies and typically commanded by either a Lieutenant Colonel or a Colonel...
, and
brigadeA brigade is a major tactical military formation that is typically composed of two to five battalions, plus supporting elements depending on the era and nationality of a given army and could be perceived as an enlarged/reinforced regiment...
, though not at higher levels of command. The XO billet is not a command; rather it is considered staff. The XO is typically responsible for the management of day-to-day activities, such as maintenance and logistics, freeing the unit commander to concentrate on tactical planning and execution. The XO also takes charge in the absence of the CO. While the experience gained as an XO is highly beneficial for an officer's professional development, never serving in the position will not preclude an officer from commanding later. In the
United States NavyThe 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...
and
Coast GuardThe United States Coast Guard is a branch of the United States Armed Forces and one of the seven U.S. uniformed services. The Coast Guard is a maritime, military, multi-mission service unique among the military branches for having a maritime law enforcement mission and a federal regulatory agency...
, XOs are normally assigned to all ships and shore units, and have a similar role to their counterparts in the Army and Marine Corps. On board Coast Guard cutters that are commanded by either a junior officer or a senior enlisted member, Executive
Petty OfficerA 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...
s (XPOs) are usually assigned to serve as second-in-command.
The
United States Air ForceThe United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...
(USAF) uses the titles of "Vice Commander" (CV), or "Deputy Commander" (CD) for an officer who serves as the second-in-command for an organization above
squadronA squadron in air force, army aviation or naval aviation is mainly a unit comprising a number of military aircraft, usually of the same type, typically with 12 to 24 aircraft, sometimes divided into three or four flights, depending on aircraft type and air force...
level. For a squadron, the second-in-command is typically termed the "Director of Operations" or "Operations Officer" (DO). The term "executive officer" is used to designate an officer who serves as an administrative assistant to a senior officer. In the other uniformed services, this position is usually called an "executive assistant." The rank of an executive officer can vary from
lieutenantA lieutenant is a junior commissioned officer in many nations' armed forces. Typically, the rank of lieutenant in naval usage, while still a junior officer rank, is senior to the army rank...
(working for a
colonelIn the United States Army, Air Force, and Marine Corps, colonel is a senior field grade military officer rank just above the rank of lieutenant colonel and just below the rank of brigadier general...
) to a colonel (serving as the executive officer to the
Chief of Staff of the Air ForceThe Chief of Staff of the Air Force is a statutory office held by a four-star general in the United States Air Force, and is the most senior uniformed officer assigned to serve in the Department of the Air Force, and as such is the principal military advisor and a deputy to the Secretary of the...
.)
A unique application of the term is Executive Officer to the Supreme Allied Commander Europe, and Commander,
United States European CommandThe United States European Command is one of ten Unified Combatant Commands of the United States military, headquartered in Stuttgart, Germany. Its area of focus covers and 51 countries and territories, including Europe, Russia, Iceland, Greenland, and Israel...
. This position is typically held by a
brigadier generalA brigadier general in the United States Army, Air Force, and Marine Corps, is a one-star general officer, with the pay grade of O-7. Brigadier general ranks above a colonel and below major general. Brigadier general is equivalent to the rank of rear admiral in the other uniformed...
or
rear admiralRear admiral is a naval commissioned officer rank above that of a commodore and captain, and below that of a vice admiral. The uniformed services of the United States are unique in having two grades of rear admirals.- Rear admiral :...
(LH) and is drawn from all of the armed services. The duties involve serving as both an "executive assistant" to Supreme Allied Commander Europe (SACEUR) and also includes command responsibilities for the U.S. military community at
Supreme Headquarters Allied Powers EuropeSupreme Headquarters Allied Powers Europe is the central command of NATO military forces. It is located at Casteau, north of the Belgian city of Mons...
(SHAPE) in Belgium.