There are a lot of acronyms for Agencies and Departments of the US Government.
• ACC - Air Combat Command• ACDA - United States Arms Control and Disarmament Agency
• ACF - Administration for Children and Families
• ACFR - Administrative Committee of the Federal Register
• ACHP - Advisory Council on Historic Preservation
• ACQWeb - Office of the Under Secretary of Defense for Acquisition and Technology
• ACS - Office of American Citizens Services and Crisis Management
• ACSFA - Advisory Committee on Student Financial Assistance
• ACYF - Administration for Children, Youth, and Families
• BATF - Bureau of Alcohol, Tobacco & Firearms
• BEA - Bureau of Economic Affairs
• BLS - Bureau of Labor Statistics
• BNL - Brookhaven National Laboratory
• BOP - Federal Bureau of Prisons
• BOR - Bureau of Reclamation
• BPA - Bonneville Power Administration
• BPC - Best Practices Committee
• BPD - Bureau of the Public Debt
• BPHC - Bureau of Primary Health Care
• BRAC - Defense Base Closure and Realignment Commission
• BRB - Benefits Review Board
• BRD - Biological Resource Division
• TA - Business Transformation Agency
• BTOP - Broadband Technology Opportunities Program
• CAOC - Chief Acquisition Officers Council
• CAP - Civil Air Patrol
• CASMIRC - Child Abduction and Serial Murder Investigative Resources Center
• CATC - Clean Air Technology Center
• CBCA - Civilian Board of Contract Appeals
• CPS - Center for Policy Studies
• CSRS - Civil Service Retirement System
• DERT - Division of Extramural Research & Training
• DESA - Department of Economic and Social Affairs
• DESC - Defense Energy Support Center
• DFAS - Defense Finance and Accounting Service
• DFEC - Division of Federal Employees' Compensation
• DHAC - Division of Health Assessment and Consultation
• DHS - Department of Homeland Security
• DOE - Department of Energy
• DOI - Department of Interior
• DOJ - Department of Justice
• DOL - Department of Labor
• EEOC - Equal Employment Opportunity Commission
• EEOICP - Energy Employees Occupational Illness Compensation Program
• EEOMBD - Ombudsman for the Energy Employees Occupational Illness Compensation Program
• FBI - Federal Bureau of Investigation
• FDA - Food and Drug Administration
• FDIC - Federal Deposit Insurance Corporation
• FEC - Federal Election Commission
• FEMA - Federal Emergency Management Agency
• FJC - Federal Judicial Center
• FLC - Federal Laboratory Consortium
• FLETC - Federal Law Enforcement Training Center
• FLH - Office of Federal Lands Highway
• FLICC - Federal Library and Information Center Committee
• FLRA - Federal Labor Relations Authority
• FMC - Federal Maritime Commission
• FOIA - Freedom of Information Act
• GPC - Grants Policy Committee
• GPO - Government Printing Office
• GPRA - Government Performance and Results Act
• GSA - General Services Administration
• GSFC - Goddard Space Flight Center
• GSTC - Geospatial Service and Technology Center
• G/TIP - Office to Monitor and Combat Trafficking in Persons
• HIP - Migratory Bird Harvest Information Program
• HIPAA - Health Insurance Portability and Accountability Act of 1996
• HISPC - Health Information Security and Privacy Collaboration
• HMDA - Home Mortgage Disclosure Act
• HMI - Healthy Marriage Initiative
• HPCC - High Performance Computing and Communications
• LM - Office of Legacy Management
• LOC - Library of Congress
• LOCIS - Library of Congress Information System
• LSC - Legal Services Corporation
• MDA - Missile Defense Agency
• MDB - Multilateral Development Banks
• MedPAC - Medicare Payment Advisory Commission
• MEP - Manufacturing Extension Partnership
• M&M - Medicare and Medicaid
• OACU - Office of Animal Care and Use
• OAG - Office of the Attorney General
• OAHP - Office of Affordable Housing Preservation
• OAIT - Office of American Indian Trust
• OALJ - Office of Administrative Law Judges
• PO - Post Office
• SG - Surgeon General
• SSA - Social Security Act or Social Security Administration
• TSA - Transportation Security Administration
• TSC - Terrorist Screening Center
• TSI - Transportation Safety Institute
• UEI – Unique Entity ID
• USA - United States Army
• USACE - U.S. Army Corps of Engineers
• USAF - United States Air Force
• USAFA - United States Air Force Academy
• USMC - United States Marine Corp
• USN - United States Navy