Federal law is the body of
lawLaw 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...
created by the
federal governmentThe federal government is the common government of a federation. The structure of federal governments varies from institution to institution. Based on a broad definition of a basic federal political system, there are two or more levels of government that exist within an established territory and...
of a country. A federal government is formed when a group of political units, such as states or provinces join together in a
federationA federation , also known as a federal state, is a type of sovereign state characterized by a union of partially self-governing states or regions united by a central government...
, surrendering their individual
sovereigntySovereignty is the quality of having supreme, independent authority over a geographic area, such as a territory. It can be found in a power to rule and make law that rests on a political fact for which no purely legal explanation can be provided...
and many powers to the
central governmentA central government also known as a national government, union government and in federal states, the federal government, is the government at the level of the nation-state. The structure of central governments varies from institution to institution...
while retaining or reserving other limited powers. As a result, two or more levels of government exist within an established geographic territory. The body of law of the common central government is the federal law.
Examples of federal governments include those of
AustraliaAustralia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
,
BrazilBrazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...
,
CanadaCanada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...
,
GermanyGermany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...
,
IndiaIndia , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
,
RussiaRussia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
, the former
Soviet UnionThe Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....
and the
United StatesThe United States of America is a federal constitutional republic comprising fifty states and a federal district...
.
United States
The
United States ConstitutionThe Constitution of the United States is the supreme law of the United States of America. It is the framework for the organization of the United States government and for the relationship of the federal government with the states, citizens, and all people within the United States.The first three...
provides for a
federal governmentThe federal government is the common government of a federation. The structure of federal governments varies from institution to institution. Based on a broad definition of a basic federal political system, there are two or more levels of government that exist within an established territory and...
that is superior to
state governmentA state government is the government of a subnational entity in a federal form of government, which shares political power with the federal or national government. A state government may have some level of political autonomy, or be subject to the direct control of the federal government...
s with regard to its
enumerated powersThe enumerated powers are a list of items found in Article I, section 8 of the US Constitution that set forth the authoritative capacity of the United States Congress. In summary, Congress may exercise the powers that the Constitution grants it, subject to explicit restrictions in the Bill of...
. These powers include the authority to govern
international affairsInternational relations is the study of relationships between countries, including the roles of states, inter-governmental organizations , international nongovernmental organizations , non-governmental organizations and multinational corporations...
, the
currencyIn economics, currency refers to a generally accepted medium of exchange. These are usually the coins and banknotes of a particular government, which comprise the physical aspects of a nation's money supply...
and
national defenseDefense has several uses in the sphere of military application.Personal defense implies measures taken by individual soldiers in protecting themselves whether by use of protective materials such as armor, or field construction of trenches or a bunker, or by using weapons that prevent the enemy...
. After the
American Civil WarThe American Civil War was a civil war fought in the United States of America. In response to the election of Abraham Lincoln as President of the United States, 11 southern slave states declared their secession from the United States and formed the Confederate States of America ; the other 25...
, the
Fourteenth AmendmentThe Fourteenth Amendment to the United States Constitution was adopted on July 9, 1868, as one of the Reconstruction Amendments.Its Citizenship Clause provides a broad definition of citizenship that overruled the Dred Scott v...
applied the Constitution's
Bill of RightsThe Bill of Rights is the collective name for the first ten amendments to the United States Constitution. These limitations serve to protect the natural rights of liberty and property. They guarantee a number of personal freedoms, limit the government's power in judicial and other proceedings, and...
to state governments. Issues that arise under any legislation passed by
CongressThe United States Congress is the bicameral legislature of the federal government of the United States, consisting of the Senate and the House of Representatives. The Congress meets in the United States Capitol in Washington, D.C....
, an Executive Order of the
PresidentThe 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....
, or a decision of
federal courtsThe United States federal courts make up the judiciary branch of federal government of the United States organized under the United States Constitution and laws of the federal government.-Categories:...
pursuant to the Constitution are governed by federal law.
The
Supreme CourtThe Supreme Court of the United States is the highest court in the United States. It has ultimate appellate jurisdiction over all state and federal courts, and original jurisdiction over a small range of cases...
makes final decisions regarding all federal. United States federal laws are codified in the
United States CodeThe Code of Laws of the United States of America is a compilation and codification of the general and permanent federal laws of the United States...
.