View source for Federal law enforcement in the United States

{{Short description|Federal law enforcement agencies of the United States}}

{{Law enforcement in the United States}}
[[File:CBP female officers going aboard a ship.jpg|thumb|[[U.S. Customs and Border Protection]] (CBP) officers going aboard a ship to examine cargo]]
The [[federal government of the United States]] empowers a wide range of federal [[Law enforcement agency|law enforcement agencies]] (informally known as the "Feds") to maintain law and public order related to matters affecting the country as a whole.<ref name="2020LEOstats" /><ref name=":0" />

While the majority of federal law enforcement employees work for the [[United States Department of Justice|Department of Justice]] and [[United States Department of Homeland Security|Homeland Security]], there are dozens of other federal law enforcement agencies under the other executive departments, as well as under the [[United States Congress|legislative]] and [[Federal judiciary of the United States|judicial]] branches of the federal government.

Federal agencies employ approximately 137,000 full-time personnel authorized to make arrests and/or carry firearms in the 50 states and the District of Columbia,<ref name="2020LEOstats" /> out of the more than 800,000 [[Law enforcement in the United States|law enforcement officers in the United States]].<ref>{{Cite web |date=May 2022 |title=Law Enforcement Facts |url=https://nleomf.org/memorial/facts-figures/law-enforcement-facts/ |access-date=12 January 2023 |website=National Law Enforcement Officers Memorial Fund |language=en-US}}</ref>

==Overview==
[[File:DSS at UNGA 72 - Motorcade arrivals (27402524719).jpg|thumb|right|Federal agencies work with other law enforcement during events, such as presidential visits to the [[United Nations General Assembly|UNGA]] in [[New York City|NYC]]. Pictured: [[United States Secret Service|USSS]], [[Diplomatic Security Service|DSS]] and [[Bureau of Alcohol, Tobacco, Firearms and Explosives|ATF]]]]

Federal law enforcement in the United States is more than two hundred years old. For example, the [[United States Postal Inspection Service|Postal Inspection Service]] can trace its origins back to 1772,<ref>{{cite web |url=https://www.uspis.gov/about/history-of-uspis/ |title=History of the United States Postal Inspection Service |access-date=2020-02-06}}</ref> while the [[United States Marshals Service|U.S. Marshals Service]] dates to 1789.<ref>{{Cite web|url=https://www.usmarshals.gov/history/oldest.htm|title=U.S. Marshals Service|date=19 June 2020 }}</ref> Other agencies, such as the [[FBI]], are relatively recent, being founded in the early twentieth century. Other agencies have been reformed, such as the [[Bureau of Alcohol, Tobacco, Firearms and Explosives|ATF]] which was formed only in 1972, but had its origins in 1886.{{CN|date=January 2023}} Some federal law enforcement agencies have been formed after mergers of other agencies, over the years. This includes the [[U.S. Customs and Border Protection|CBP]], [[Bureau of Alcohol, Tobacco, Firearms and Explosives|ATF]], and the [[Drug Enforcement Administration|DEA]].

Military law enforcement, although federal, consists of both military personnel and civilian officers. For example, "[[DOD Police|DoD Police]]" refers to any civilian engaged in police duties for the [[United States Department of Defense|DoD]] or the [[US Armed Forces]]. Each branch also has a law enforcement agency responsible for the investigation of more serious crimes and incidents, such as the Army’s [[United_States_Army_Criminal_Investigation_Division|Criminal Investigation Division]].

Different federal law enforcement authorities have authority under different parts of the [[United States Code]] (U.S.C.). Most are limited by the U.S. Code to investigating matters that are explicitly within the power of the federal government. There are exceptions, with some agencies and officials enforcing codes of [[U.S. state]]s and [[Tribe (Native American)|tribes]] of [[Native Americans in the United States]].  Some federal investigative powers have become broader in practice, especially since the passage of the [[Patriot Act]] in October 2001.<ref>{{cite web|url=http://tamiu.libguides.com/content.php?pid=355722&sid=2953612|title=LibGuides: Criminal Justice: Federal Law Enforcement Agencies|first=Jeanette|last=Hatcher}}</ref>

The [[United States Department of Justice]] was formerly the largest and is still the most prominent, collection of federal law enforcement agencies. It has handled most law enforcement duties at the federal level<ref name="langeluttig-p9">{{cite book |title=The Department of Justice of the United States |author=Langeluttig, Albert |publisher=Johns Hopkins Press |year=1927 |pages=9–14}}</ref> and includes the [[United States Marshals Service]] (USMS), the [[Federal Bureau of Investigation]] (FBI), the [[Drug Enforcement Administration]] (DEA), the [[Bureau of Alcohol, Tobacco, Firearms and Explosives]] (ATF), [[Federal Bureau of Prisons]] (BOP), and others.

However, the [[United States Department of Homeland Security]] (DHS) became the department with the most sworn armed Federal law enforcement officers and agents upon its creation in 2002 in response to the [[September 11 attacks|September 11, 2001 terrorist attacks]] when it incorporated agencies seen as having roles in protecting the country against terrorism. This included large agencies such as [[U.S. Immigration and Customs Enforcement]] Homeland Security Investigations (HSI), the [[United States Secret Service|U.S. Secret Service]] (USSS), the [[United States Coast Guard|U.S. Coast Guard]] (USCG), the [[Transportation Security Administration]] (TSA), and the [[U.S. Customs and Border Protection]] (CBP) (created by combining the former agencies of the [[United States Border Patrol]], [[United States Customs Service]], and the [[United States Department of Agriculture]]'s [[Animal and Plant Health Inspection Service]] (APHIS) into a single agency within the DHS).<ref name=":0">{{cite web|url=https://www.cbp.gov/about/history|title=CBP Through the Years - U.S. Customs and Border Protection}}</ref>

==Statistics==
{{trivia|date=September 2024}}
<!-- start {{USGovernment}} -->
* In 2020, federal agencies employed approximately 137,000 full-time personnel authorized to make arrests and/or carry firearms in the 50 states and the District of Columbia. Around half (49%) of the personnel worked for the Department of Homeland Security, and 30% worked for the Department of Justice.
* Federal officers' most common primary function was criminal investigation or enforcement (68%), corrections (25%), and police response and patrol (9%).
* Around 15% of federal law enforcement officers and 13% of supervisory law enforcement personnel were female in 2020.
* More than a third (38%) of federal officers were members of a racial or ethnic minority in 2020. This included 21% who were Hispanic or Latino, and 10% who were black or African American. In 2002, racial or ethnic minorities officers constituted 32.4% of federal officers.
* About 60% of federal agencies authorized shotguns or manual rifles for officers while on duty in 2020. Fifty percent authorized semiautomatic rifles and 20% authorized fully automatic rifles for officers while on duty.<ref name="2020LEOstats">{{Cite web |date=2022-09-29 |title=Federal Law Enforcement Officers, 2020 – Statistical Tables |url=https://bjs.ojp.gov/library/publications/federal-law-enforcement-officers-2020-statistical-tables |access-date=2022-12-11 |website=[[Bureau of Justice Statistics]] |language=en}}</ref>
<!-- end {{USGovernment}} -->

==List of federal law enforcement agencies and units of agencies==
Agencies in bold text are law enforcement agencies (LEAs).

===Executive branch===
====[[United States Department of Agriculture|Department of Agriculture]]====
[[File:Seal of the United States Department of Agriculture.svg|Seal of the United States Department of Agriculture|right|100px]]

* [[United States Department of Agriculture#Organization and Component Staff Level|Staff Offices Secretary of Agriculture]]
 '''Office of Safety, Security and Protection''' (OSSaP)<ref>{{Cite web|title=USDA Leadership and Offices|url=https://www.usda.gov./leadership-and-offices|language=en}}</ref>
* '''[[U.S. Department of Agriculture, Office of Inspector General|Office of Inspector General]]''' ('''USDA-OIG''')
* [[United States Forest Service]] (USFS) 
 '''[[United States Forest Service#Law Enforcement & Investigations|U.S. Forest Service Law Enforcement & Investigations]]''' ('''USFS LEI''')
* '''[[Animal and Plant Health Inspection Service]] Investigation and Enforcement Services''' (APHIS IES)

====[[United States Department of Commerce|Department of Commerce]]====
[[File:Seal of the United States Department of Commerce.svg|Seal of the United States Department of Commerce|right|100px]]
[[File:US DOC Office of Security.jpg|US DOC Office of Security|right|300px]]
* '''Office of Inspector General''' ('''DOC-OIG''')
*[[U.S. Department of Commerce Office of Security|Office of Security]] (DOC OSY) 
'''US Commerce Department Police'''
* [[Bureau of Industry and Security]] (BIS) 
 '''[[Office of Export Enforcement]]''' '''(OEE)'''
* [[National Institute of Standards and Technology]] (NIST) 
 '''National Institute of Standards and Technology Police'''
* [[National Oceanic and Atmospheric Administration]] (NOAA) 
 [[Office of Space Commerce|Office of Space Commerce, Division of Commercial Remote Sensing Regulatory Affairs (CRSRA) Compliance and Monitoring]]
 [[National Marine Fisheries Service]] (NMFS) 
* '''[[National Oceanic and Atmospheric Administration Fisheries Office of Law Enforcement|Office of Law Enforcement]]''' ('''OLE''')

====[[United States Department of Defense|Department of Defense]]====
[[File:Seal of the United States Department of Defense.svg|United States Department of Defense Seal|right|100px]]

* '''[[Office of the Inspector General, U.S. Department of Defense|Office of Inspector General]]''' ('''DOD-OIG''')
'''[[Defense Criminal Investigative Service]]''' ('''DCIS''')
* '''[[Pentagon Force Protection Agency]]''' ('''PFPA''') 
 '''[[United States Pentagon Police]]''' ('''PPD''')
* '''[[Department of Defense police|Department of Defense Police]]''' '''(DoD Police)'''
* [[Defense Logistics Agency]] (DLA) 
 '''[[Defense Logistics Agency#DLA Police|Defense Logistics Agency Police]]'''
* [[National Security Agency]] (NSA) 
 '''[[National Security Agency#NSA Police|National Security Agency Police]]'''
* [[Defense Intelligence Agency]] (DIA) 
 '''[[Defense Intelligence Agency#DIA Police|Defense Intelligence Agency Police]]'''
* [[National Geospatial-Intelligence Agency]] ('''NGA''') 
 '''[[National Geospatial-Intelligence Agency Police]]''' (NGA Police)
* '''[[United States Department of the Army|Department of the Army]]'''
 '''[[United States Army Criminal Investigation Division]]''' ('''USACID''') 
 '''[[United States Army Counterintelligence]]''' ('''ACI''') 
 '''[[Military Police Corps (United States)|United States Army Military Police Corps]] (USAMPC)'''
 '''[[Department of the Army Civilian Police]] (DACP)''' 
* includes '''Department of the Army Civilian Guards (DASG)'''
 '''[[United States Army Corrections Command]]''' (USACC)
* '''[[United States Department of the Navy|Department of the Navy]]''' 
 '''[[Naval Criminal Investigative Service]]''' ('''NCIS''') 
 '''[[United States Marine Corps Criminal Investigation Division]]''' ('''USMC CID''') 
 '''[[Master-at-arms (United States Navy)|United States Navy Master-at-Arms]]''' (military police)
 '''[[Department of the Navy Police]]''' (civilian police)
 '''[[United States Marine Corps Military Police]]'''
 '''[[United States Marine Corps Civilian Police]]'''
 '''[[Marine Security Guards]]'''
 '''[[Marine Security Forces]]'''
* '''[[United States Department of the Air Force|Department of the Air Force]]''' 
 '''[[Department of the Air Force Office of Special Investigations]]''' ('''OSI''') 
 [[Air Force Security Forces Center]] (AFSFC) 
 '''[[United States Air Force Security Forces]]''' (military police)
 '''[[Department of the Air Force Police]]''' (civilian police)
* ''includes '''Department of Air Force Civilian Guards (DAF Guard)'''''

====[[United States Department of Education|Department of Education]]====
[[File:Seal of the United States Department of Education.svg|Seal of the United States Department of Education|right|100px]]

* '''Office of Inspector General''' ('''ED-OIG''')
* '''Protective Service Division ''' ('''ED-PSD''')
* '''[[Office for Civil Rights]]''' ('''OCR''')

====[[United States Department of Energy|Department of Energy]]====
[[File:Seal of the United States Department of Energy.svg|Seal of the United States Department of Energy|right|100px]]

* '''[[U.S. Department of Energy, Office of Inspector General|Office of Inspector General]]''' ('''DOE-OIG''')
* '''Office of Health, Safety and Security''' ('''DOE-HSS''')
* [[National Nuclear Security Administration]] (NNSA) 
 '''[[Office of Secure Transportation]]''' '''(OST)'''
 '''[[Federal Protective Forces]]'''

====[[United States Department of Health and Human Services|Department of Health and Human Services]]====
[[File:US Department of Health and Human Services seal.svg|Seal of the United States Department of Health and Human Services|right|100px]]

* '''[[Office of Inspector General, U.S. Department of Health and Human Services|Office of Inspector General]]''' ('''HHS-OIG''') 
* [[Food and Drug Administration|United States Food and Drug Administration]] (FDA) 
 '''[[Office of Criminal Investigations]]''' ('''OCI''')
* [[National Institutes of Health]] (NIH) 
 '''[[National Institutes of Health Police]]'''

====[[United States Department of Homeland Security|Department of Homeland Security]]====
[[File:Seal of the United States Department of Homeland Security.svg|Seal of the United States Department of Homeland Security|right|100px]]

[[File:CBP Officers pay tribute 2007.jpg|right|thumb|CBP Officers and Border Patrol Agents at a ceremony in 2007]]

* '''[[Department of Homeland Security Office of Inspector General|Office of Inspector General]]''' ('''DHS-OIG''')
* '''[[Federal Protective Service (United States)|Federal Protective Service]]''' ('''FPS''') 
* [[Federal Law Enforcement Training Centers]] (FLETC) 
'''Office of Security and Professional Responsibility'''
* '''[[United States Coast Guard]]''' ('''USCG''') 
'''[[Maritime Law Enforcement Specialist]]''' 
'''[[Coast Guard Investigative Service]]''' ('''CGIS''') 
 '''[[United States Coast Guard Police]]''' ('''CGPD''')
* '''[[U.S. Customs and Border Protection|United States Customs and Border Protection]]''' ('''CBP''') 
 '''[[United States Border Patrol]]''' ('''USBP''') 
 '''[[CBP Air and Marine Operations]]''' ('''AMO''') 
 '''[[CBP Office of Field Operations]]''' ('''OFO''') 
* [[Federal Emergency Management Agency]] (FEMA)
 [[Mount Weather Emergency Operations Center]]
*'''Mount Weather Emergency Operations Center Police'''
 '''Office of Chief Security Officer''' ('''OCSO''')
* '''[[U.S. Immigration and Customs Enforcement|United States Immigration and Customs Enforcement]]''' ('''ICE''') 
 '''[[U.S. Immigration and Customs Enforcement#Homeland Security Investigations''' ('''HSI)|Homeland Security Investigations]] (HSI''') 
 '''[[U.S. Immigration and Customs Enforcement#Enforcement and Removal Operations''' ('''ERO)|Enforcement Removal Operations]] (ERO''') 
 '''[[U.S. Immigration and Customs Enforcement#Intelligence|Office of Intelligence]]'''
 '''[[U.S. Immigration and Customs Enforcement#Office of Professional Responsibility|Office of Professional Responsibility]]''' ('''OPR''')
* '''[[United States Secret Service]]''' ('''USSS''') 
 '''[[United States Secret Service Uniformed Division]]''' ('''USSS UD''') 
 [[Secret Service Counter Assault Team|'''Secret Service Counter Assault Team''']] (CAT) 
* [[Transportation Security Administration]] (TSA) 
 '''Office of Law Enforcement''' ('''OLE)/[[Federal Air Marshal Service]] (FAMS''') 
* '''[[Federal Flight Deck Officer]]''' (FFDO)
 '''Office of Inspection''' ('''OI''')
* [[United States Citizenship and Immigration Services]] (USCIS) 
 '''Fraud Detection and National Security Directorate''' ('''FDNS''')

====[[United States Department of Housing and Urban Development|Department of Housing and Urban Development]]====
[[File:Seal of the United States Department of Housing and Urban Development.svg|Seal of the United States Department of Housing and Urban Development|right|100px]]

* '''Office of Inspector General''' ('''HUD-OIG''')
* '''Protective Service Division''' ('''HUD-PSD''')

====[[United States Department of the Interior|Department of the Interior]]====
[[File:Seal of the United States Department of the Interior.svg|Seal of the United States Department of the Interior|right|100px]]

* '''Office of Inspector General''' ('''DOI-OIG''')
* [[Bureau of Indian Affairs]] (BIA)
Office of Justice Services
* '''[[Bureau of Indian Affairs Police]]'''
* [[Bureau of Land Management]] (BLM) 
[[Bureau of Land Management#Law enforcement and security|'''Office of Law Enforcement & Security''']]
* [[United States Bureau of Reclamation]] (BOR) 
 '''[[Bureau of Reclamation Security Response Force|Security Response Force]]''' (SRF), formerly known as '''[[Hoover Dam Police]]''' that covers [[Hoover Dam]], [[Grand Coulee Dam]] and [[Glen Canyon Dam]]
* [[National Park Service]] (NPS) 
'''[[National Park Service Law Enforcement Rangers|NPS Law Enforcement Rangers]]'''
 '''[[United States Park Police]]''' 
* [[United States Fish and Wildlife Service]] (USFWS) 
 '''[[United States Fish and Wildlife Service Office of Law Enforcement|Office of Law Enforcement]]''' ('''FWS OLE''')
 '''Division of Refuge Law Enforcement'''

====[[United States Department of Justice|Department of Justice]]====
[[File:Seal of the United States Department of Justice.svg|Seal of the United States Department of Justice|right|100px]]

* '''[[United States Department of Justice Office of the Inspector General|Office of the Inspector General]]''' ('''DOJ-OIG''') 
* '''[[Bureau of Alcohol, Tobacco, Firearms and Explosives]]''' ('''ATF''')
* '''[[Drug Enforcement Administration]]''' ('''DEA''')
* '''[[Federal Bureau of Investigation]]''' ('''FBI''')
* '''[[Federal Bureau of Prisons]]''' ('''BOP''')
* '''[[United States Marshals Service]]''' ('''USMS''')
* [[Office of Professional Responsibility]] (DOJ OPR)

====[[United States Department of Labor|Department of Labor]]====
[[File:Seal of the United States Department of Labor.svg|Seal of the United States Department of Labor|right|100px]]

* '''[[U.S. Department of Labor, Office of Inspector General|Office of Inspector General]]''' ('''DOL-OIG''')

====[[United States Department of State|Department of State]]====
[[File:U.S. Department of State official seal.svg|U.S. Department of State official seal|right|100px]]

* '''[[Office of the Inspector General of the Department of State|Office of Inspector General]]''' ('''DOS-OIG''') 
* [[Bureau of Diplomatic Security]] (DS) 
 '''[[Diplomatic Security Service]]''' ('''DSS''')
====[[United States Department of Transportation|Department of Transportation]]====
[[File:Seal of the United States Department of Transportation.svg|Seal of the United States Department of Transportation|right|100px]]

* '''[[Office of Inspector General for the Department of Transportation|Office of Inspector General]]''' ('''DOT-OIG''') 
* [[United States Merchant Marine Academy]] 
 '''[[United States Merchant Marine Academy#Department of Public Safety|Department of Public Safety]] (USMMADPS)'''
* [[National Highway Traffic Safety Administration]] 
 Office of Odometer Fraud Investigation (OFI)

====[[United States Department of the Treasury|Department of the Treasury]]====
[[File:Seal of the United States Department of the Treasury.svg|Seal of the United States Department of the Treasury|right|100px]]

[[File:Bureau of Engraving and Printing Police.jpg|right|thumb|A Bureau of Engraving and Printing Police (BEP) patrol car.]]
* '''Office of Inspector General''' ('''USDT-OIG''')
* [[Bureau of Engraving and Printing]] 
 '''[[United States Bureau of Engraving and Printing Police|Bureau of Engraving and Printing Police]]'''
* [[Financial Crimes Enforcement Network]] (FINCEN) 
* [[Internal Revenue Service]] (IRS) 
 '''[[IRS Criminal Investigation|Criminal Investigation]]''' ('''IRS-CI''') 
* '''[[United States Mint Police]]''' ('''USMP''') 
* '''[[Treasury Inspector General for Tax Administration]]''' ('''TIGTA''')
* '''[[Special Inspector General for Pandemic Recovery]]''' ('''SIGPR''')<ref>https://crsreports.congress.gov/product/pdf/IN/IN11328 {{Webarchive|url=https://web.archive.org/web/20200512023803/https://crsreports.congress.gov/product/pdf/IN/IN11328 |date=2020-05-12 }} {{Bare URL PDF|date=March 2022}}</ref> 
* '''Special Inspector General for the [[Troubled Asset Relief Program]]''' ('''SIGTARP''')
[[File:IRS-CI_Special_Agents.png|right|thumb|Two IRS-CI Special Agents conducting a search]]

====[[United States Department of Veterans Affairs|Department of Veterans Affairs]]====
[[File:Seal of the U.S. Department of Veterans Affairs.svg|Seal of the U.S. Department of Veterans Affairs|right|100px]]

* '''Office of Inspector General''' ('''VA-OIG''')
* '''[[United States Department of Veterans Affairs Police|Veterans Affairs Police]]'''

===Legislative branch===
[[File:Seal of the United States Congress.svg|Seal of the United States Congress|right|100px]]

* [[Sergeant at Arms of the United States House of Representatives]] 
* [[Sergeant at Arms of the United States Senate]] 
* '''[[United States Capitol Police]]''' ('''USCP''') 
 '''Office of Inspector General''' ('''USCP OIG''')
 Office of Professional Responsibility (USCP OPR)
* [[Library of Congress]] (LOC) 
 '''Office of Inspector General''' ('''LOC-OIG''')
* [[United States Government Publishing Office|Government Publishing Office]] (GPO) 
 '''Office of Inspector General''' ('''GPO-OIG''')
 '''[[United States Government Publishing Office#GPO Police|Government Publishing Office Police]]'''

===Judicial branch===
* '''[[Marshal of the United States Supreme Court]]'''
 '''[[Supreme Court Police|United States Supreme Court Police]]''' 
* [[Administrative Office of the United States Courts]] (AOUSC) 
 [[U.S. Probation and Pretrial Services System|'''Office of Probation and Pretrial Services''']] '''(Federal Probation Officers)'''

===Other federal law enforcement agencies===
Independent Agencies and federally-administered institutions;
* [[Central Intelligence Agency]] 
 '''Security Protective Service''' ('''CIA SPS''')
* '''CIA Police'''
* [[Commodity Futures Trading Commission]]
'''Division of Enforcement'''
* [[United States Environmental Protection Agency]] 
'''Office of Inspector General''' ('''EPA-OIG''')
 '''[[Office of Enforcement and Compliance Assurance]]''' ('''OECA)'''
*'''Criminal Investigation Division'''
* [[National Gallery of Art]] 
 '''Office of Protection Services'''
* [[NASA]] 
 '''[[NASA Office of Inspector General|Office of Inspector General]]''' ('''NASA-OIG''') 
 '''Office of Protective Services''' ('''NASA OPS''')
* [[United States Office of Personnel Management]] (OPM) 
 '''Office of Inspector General''' ('''OPM OIG''')
[[File:2016 Ford Police Interceptor Utility belonging to the US Postal Police, NYC.jpg|thumb|right|2016 Ford Police Interceptor Utility belonging to the US Postal Police, NYC]]
* [[United States Postal Service]] (USPS)
 '''[[United States Postal Service Office of Inspector General|Office of Inspector General]]''' ('''USPS-OIG''') 
 '''[[United States Postal Inspection Service]] (USPIS) '''
* '''[[United States Postal Inspection Service#Police Force|U.S. Postal Police]]''' 
* [[Smithsonian Institution]] (SI) 
'''[[Office of Inspector General (United States)|Office of Inspector General]]''' ('''SI-OIG''')
 '''[[Smithsonian Police|Office of Protection Services]]''' 
 '''[[Smithsonian Police#Positions|National Zoological Park Police]]''' ('''NZPP''') 
* [[Amtrak]] 
 '''Office of Inspector General''' (Amtrak-OIG)
 '''Office of Security Strategy and Special Operations''' (OSSSO)
 '''[[Amtrak Police Department]]''' 
*[[Federal Reserve|Federal Reserve System]] 
'''Office of Inspector General''' ('''FRB/[[Consumer Financial Protection Bureau|CFPB]]-OIG''') 
 '''[[Federal Reserve Police]]''' 
[[Federal Reserve Board of Governors]]
* '''Federal Reserve Board Police''' 
* [[Tennessee Valley Authority]] 
 '''Office of Inspector General''' ('''TVA-OIG''')
* [[Nuclear Regulatory Commission]] (NRC)
 '''Office of Investigation'''
 '''Office of Inspector General''' ('''NRC-OIG)'''
* [[National Science Foundation]] (NSF)
 '''Office of Inspector General''' ('''NSF-OIG''')
* [[National Archives and Records Administration]] (NARA)
 '''Office of Inspector General''' ('''NARA-OIG''')
* [[Peace Corps]] (PC)
 '''Office of Inspector General''' ('''PC-OIG''')
* [[Railroad Retirement Board]] (RRB)
 '''Office of Inspector General''' ('''RRB-OIG''')
* [[Small Business Administration]] (SBA)
 '''Office of Inspector General''' ('''SBA-OIG''')
* [[Federal Deposit Insurance Corporation]] (FDIC)
 '''Office of Inspector General''' ('''FDIC-OIG''')
* [[General Services Administration]] (GSA)
 '''Office of Inspector General''' ('''GSA-OIG''')
* [[Social Security Administration]] (SSA)
 '''Office of Inspector General''' ('''SSA-OIG''')
* [[United States Agency for International Development]]
 '''Office of Inspector General''' ('''AID-OIG''')
* [[Corporation for National and Community Service]] (CNCS)
 '''Office of Inspector General''' ('''CNCS-OIG''')

==List of former agencies and units of agencies==
* [[United States Revenue Cutter Service]] (1790 - 1915) (merged with the US Life Saving Service to create the United States Coast Guard)
* [[Internal Revenue Service|Bureau of Internal Revenue]], Narcotic Division (1921-1927) (transferred to Bureau of Prohibition)
* [[Bureau of Prohibition]], Narcotic Division (1927-1930) (merged into Federal Bureau of Narcotics)
* [[Federal Bureau of Narcotics|Federal Narcotics Control Board]] (FNCB) (1922-1930) (merged into Federal Bureau of Narcotics)
* [[White House Police Force]] (1922-1930) (became part of the United States Secret Service. It was renamed the Executive Protective Service in 1970 and then the Uniformed Division of the Secret Service in 1977)
* [[Steamboat Inspection Service]] (1871-1932) (merged into Bureau of Marine Inspection and Navigation)
* [[Bureau of Navigation|Bureau of Marine Inspection and Navigation]] (1884-1946) (functions split between U.S. Customs Service and U.S. Coast Guard)
* [[Federal Bureau of Narcotics]] (FBN) (1930-1968) (merged into Bureau of Narcotics and Dangerous Drugs)
* [[Bureau of Drug Abuse Control]] (1966-1968) (merged into Bureau of Narcotics and Dangerous Drugs)
* [[Bureau of Narcotics and Dangerous Drugs]] (BNDD) (1968-1973) (merged into Drug Enforcement Administration)
* [[Office of Drug Abuse Law Enforcement]] (ODALE) (1972-1973) (merged into Drug Enforcement Administration)
* [[Office of National Narcotics Intelligence]] (ONNI) (1972-1973) (merged into Drug Enforcement Administration)
* [[Canal Zone Police]] (1904-1982), dissolved by [[Torrijos–Carter Treaties]]
* [[Bureau of Secret Intelligence]] (BSI) (1916-1985) (replaced by Diplomatic Security Service)
* [[United States Treasury Police]] (TPF) (1879-1986) (merged with the Uniformed Division of the Secret Service)
* [[United States Customs Service]] (1789-2003) (functions split between U.S. Customs and Border Protection and U.S. Immigration and Customs Enforcement)
* [[Immigration and Naturalization Service]] (INS) (1940-2003) (functions transferred to three new entities – U.S. Citizenship and Immigration Services, U.S. Immigration and Customs Enforcement, and U.S. Customs and Border Protection.)
* [[Library of Congress Police]] (LCP) (1950-2009) (merged into the United States Capitol Police)
* [[Hoover Dam Police]] (1931-2017) (functions transferred to United States Park Rangers stationed at Lake Mead National Recreation Area and Bureau of Reclamation Security Response Force)
* [[Federal Investigative Services Division]] (replaced by National Background Investigations Bureau in 2016)
* [[National Background Investigations Bureau]] (2016-2019) (merged with Defense Counterintelligence and Security Agency)
* [[Defense Counterintelligence and Security Agency|Defense Investigative Service]] (DSS) (1972-1999) (changed to Defense Security Service)
* [[Defense Counterintelligence and Security Agency|Defense Security Service]] (DSS) (1999-2019) (merged with Defense Counterintelligence and Security Agency)

==See also==
* [[Special agent|Federal Special Agents]]
* [[Law enforcement in the United States]]
* [[List of United States state and local law enforcement agencies]]
* [[Office of Inspector General (United States)]]

==References==
{{Reflist}}
* {{USGovernment}}

==External links==
{{commons category|Federal police of the United States}}

{{Federal law enforcement agencies of the United States}}
{{United States federal Offices of Inspector General}}
{{United States military law enforcement}}
{{Lists of law enforcement agencies by country}}
{{Authority control}}

{{DEFAULTSORT:Federal Law Enforcement In The United States}}
[[Category:Federal law enforcement in the United States| ]]
[[Category:Federal law enforcement agencies of the United States| ]]
[[Category:Lists of government agencies in the United States]]
[[Category:Lists of law enforcement agencies|United States]]

[[fr:Police aux États-Unis#État fédéral]]