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GovSpeak: A Guide to U.S. Government Acronyms & Abbreviations: A

The most current, extensive and fully-linked listing of U.S. government agency, office, program and publication acronyms.


21CCF 21st Century Customs Framework
21CW Office of the 21st Century Workforce (unable to verify)
21MP 21st Century Museum Professionals Program
3CT Climate Change Communication Toolkit
3DEP 3D Elevation Program (older link archive; archive2)
3DMAGGS Three-Dimensional Multi-block Advanced Grid Generation System
7-SEAS Seven SouthEast Asian Studies
18F 1800 F Street
A2e Atmosphere to Electrons
A&LS Accessibility & Language Services Division
AAA Archives of American Art
AAB Agency Assistance Branch (older link archive)
AABS Annual Arts Basic Survey (unable to verify 10/20)
AAD Access to Archival Databases
AADAP Aquatic Animal Drug Approval Partnership (older link archive; archive2)
AAG Assistant Attorney General: Antitrust | Civil Rights | Criminal | ENRD | JMD | NSD | OJP | OLA | OLC | OLP | Tax
AAHC Museum Grants for African American History and Culture
AAI Argonne Accelerator Institute (older link archive; archive2)
AAM Office of Aerospace Medicine
AAO Administrative Appeals Office (older link archive; archive2; archive3)
AAP Accelerated and Advance Payment | Advance Acquisition Plan (unable to verify 10/20; older link archive)
AAPC Accounting and Auditing Policy Committee
AAPI Initiative on Asian Americans and Pacific Islanders (unable to verify 2/21; older link archive)
AAQTF Agricultural Air Quality Task Force (older link archive)
AARO All-domain Anomaly Resolution Office
AAS Office of Airport Safety and Standards
AAVP Advanced Air Vehicles Program (older link archive)
AAWQ Animal Agriculture and Water Quality subcommittee
AAWU Alaska Aviation Weather Unit (older link archive)
AC Animal Care (older link archive)
AC4 Atmospheric Chemistry, Carbon Cycle, & Climate (older link archive; archive2)
ACA Affordable Care Act | Atrocity Crimes Advisory Group
ACAS Air Cargo Advance Screening
ACBS Asthma Call-back Survey
ACC American Climate Corps | Assistance to Coal Communities
ACCE Airborne Cloud Computing Environment (unable to verify 2/21)
ACCESS Advancing Collaborative Connections for Earth System Science | Advancing Communities through Credit, Education, Stability and Support | Argonne Collaborative Center for Energy Storage Science
ACCLPP Advisory Committee on Childhood Lead Poisoning Prevention (older link archive; archive2)
ACCP Atmospheric Composition & Chemical Processes
ACCSH Advisory Committee on Construction Safety and Health (older link archive)
ACCV Advisory Commission on Childhood Vaccines (older link archive; archive2)
ACD Advanced Counterfeit Deterrence (older link archive; archive2) | Advisory Committee to the Director | Applied Cybersecurity Division
ACDBE Airport Concession Disadvantaged Business Enterprise
ACDDE Advisory Committee on Diversity and Digital Empowerment (changed to CEDC)
ACDEB Advisory Committee on Data for Evidence Building
A.C.E. Accuracy and Coverage Evaluation
ACE Academic Center of Excellence (changed to YVPCs) | Advanced Composition Explorer (older link archive) | Adverse Childhood Experiences (older link archive; archive2; archive3) | Aerosols, Clouds, Ecosystems (unable to verify 5/20) | Affordable Clean Energy | America's Children and the Environment (older link archive) | Americas Competitiveness Exchange older link archive) | Assess Costs Everywhere | Assessment of Chemical Exposures Program (older link archive) | Automated Commercial Environment (older link archive)
ACEC Areas of Critical Environmental Concern (older link archive; archive2; archive3)
ACEP Agricultural Conservation Easement Program (older link archive)
ACES Active Community Environments Initiative (unable to verify) | Annual Capital Expenditures Survey
ACESD Atlantic Coastal Environmental Sciences Division
ACET Automated Cybersecurity Evaluation Toolbox
ACF Administration for Children and Families | Analytical Control Facility
ACFR Administrative Committee of the Federal Register
ACFRC Advisory Committee on Family Residential Centers (unable to verify 2/21)
ACH Automated Clearing House | Automated Clearinghouse
ACHP Advisory Council on Historic Preservation
ACI Advanced Cyberinfrastructure (changed to OAC)
ACIP Advisory Committee on Immunization Practices
ACIR Agricultural Commodity Import Requirements
ACIS Animal Care Information System (unavailable as of 8/16) | Automated Case Information System
ACL Administration for Community Living | Analytical Chemistry Laboratory (unable to verify 12/17)
ACM$ Award Cash Management $ervice
ACMAP Atmospheric Composition Modeling and Analysis Program (older link archive)
ACMD Applied and Computational Mathematics Division | Applied Chemicals and Materials Division
ACME Advanced Combustion via Microgravity Experiments
ACMUI Advisory Committee on the Medical Uses of Isotopes
ACNS Advisory Committee for Nuclear Security
ACO Aircraft Certification Office (changed to Certification Branches)
ACO REACH Accountable Care Organization Realizing Equity, Access, and Community Health (older link archive)
ACORN Accelerator Controls Operations Research Network
ACOSS Animal Contact Outbreak Surveillance System
ACP Affordable Connectivity Program
ACPAC Aviation Consumer Protection Advisory Committee
ACPD Advisory Commission on Public Diplomacy (older link archive; archive2) | Aviation Consumer Protection Division
AcqNet Acquisition Central
ACRES Assessment, Cleanup and Redevelopment Exchange System (older link archive; archive2; archive3)
ACRGP Airport Coronavirus Response Grant Program
ACRS Advisory Committee on Reactor Safeguards
ACS American Community Survey | Automated Collection System | Office of American Citizens Services and Crisis Management (unable to verify 6/20)
ACS-ED American Community Survey Education Tabulation
ACSFA Advisory Committee on Student Financial Assistance (defunct)
ACSL Adaptive Cropping Systems Laboratory (older link archive)
ACSNCA Advisory Committee for the Sustained National Climate Assessment (also, SNCAFAC; defunct 8/17)
ACT-America Atmospheric Carbon and Transport - America (older link archive)
ACTION II Accelerating Change and Transformation in Organizations and Networks II (older link archive)
ACTIV Accelerating COVID-19 Therapeutic Interventions and Vaccines
ACTIV TRACE ACTIV Tracking Resistance and Coronavirus Evolution
ACToR Aggregated Computational Toxicology Online Resource (retired; older link archive)
ACTR Air Travel Consumer Reports
ACTVS Automated Cryptographic Validation Testing System
ACU Animal Care and Use (changed to OACU)
ACUS Administrative Conference of the United States
ACVFA Advisory Committee On Voluntary Foreign Aid
ACVP AIDS and Cancer Virus Program (older link archive; archive2)
ACWI Advisory Committee on Water Information (inactive as of 12/19; older link archive)
ACWS Advisory Committee for Women's Services (older link archive; archive2)
ACWV Advisory Committee on Women Veterans
ACYF Administration on Children, Youth, and Families
AD Auctions Division
ADA Americans with Disabilities Act (Text of ADA legislation)
ADAC Arctic Domain Awareness Center
ADAMS Agencywide Documents Access and Management System (older link archive)
ADAT Advanced Data Access Tool
ADB Assimilation Development Branch (unable to verify 11/23)
ADC Program Against Digital Counterfeiting of Currency (changed to ACD)
ADCB Accelerated Disease Control Branch
AD/CVD Antidumping and Countervailing Duties
ADD Administration on Developmental Disabilities (changed to AIDD)
ADDM Autism and Developmental Disabilities Monitoring Network (older link archive)
ADDS Aviation Digital Data Service (older link archive)
ADEAR Alzheimer's Disease Education and Referral Center (older link archive; archive2; archive3)
ADEPP Aging and Disability Evidence-Based Programs and Practices
ADF African Development Foundation
ADHS Appalachian Development Highway System (older link archive)
ADI Applicability Determination Index
ADL Advanced Distributed Learning
ADMA Associate Director for Military Affairs (unable to verify)
ADMG Airborne Data Management Group
ADMS Advanced Distribution Management System Program (older link archive)
ADOPT Automotive Deployment Options Projection Tool
ADPI Alzheimer’s Disease Programs Initiative
ADR Interagency Alternative Dispute Resolution Working Group
ADRO Alternative Dispute Resolution Office (older link archive; archive2)
ADS Astrophysics Data System | Automated Directives System (older link archive) | Bureau of Arms Control, Deterrence, and Stability
ADS-B Automatic Dependent Surveillance-Broadcast (older link archive; archive2)
AdSci Adaptation Sciences Program
ADTF Accelerator Development & Test Facility
ADVANce Accelerating the Development of Veterinary and Animal Needs
AEAP Antiterrorism and Emergency Assistance Program (older link archive; archive2)
AED Aircraft Evaluation Division (older link archive)
AEDI Appalachia Economic Development Initiative
AEDT Aviation Environmental Design Tool
AEED Atmospheric, Earth, and Energy Division (older link archive)
AEG Aircraft Evaluation Groups (changed to AED)
AEGL Acute Exposure Guideline Levels Program
AEL Authorized Equipment List
AEO Annual Energy Outlook | Applied Economics Office | Arctic Energy Office
AEP Annual Evaluation Plan | Public-Private Analytic Exchange Program
AER Annual Energy Review
AERC Agriculture Economics and Rural Communities (older link archive; archive2)
AEROMMA Atmospheric Emissions and Reactions Observed from Megacities to Marine Areas
AES Advanced Exploration Systems (unable to verify 10/23) | APS Engineering Support Division | Assessment Evaluation and Standardization Program | Automated Export System (older link archive)
AESC Arctic Executive Steering Committee (older link archive)
AESMD Atmospheric and Environmental Systems Modeling Division
AESTIR Automated Export System Trade Interface Requirement
AET Advanced Energy Technologies directorate
AETC Aerosciences Evaluation and Test Capabilities (older link archive)
AF Bureau of African Affairs (older link archive)
AFC American Folklife Center (older link archive)
AFCARS Adoption and Foster Care Reporting and Analysis System (older link archive)
AFCP Ambassadors Fund for Cultural Preservation
AFDC Aid to Families with Dependent Children (changed to TANF) | Alternative Fuels Data Center
AFF American FactFinder (replaced by | Assets Forfeiture Fund (older link archive) | Automated Flight Following
AFFH Affirmatively Furthering Fair Housing (older link archive)
AFFH-T Affirmatively Furthering Fair Housing Data and Mapping Tool
AFG Assistance to Firefighters Grant Program (older link archive)
AFI Analytical Framework for Intelligence | Assets for Independence
AFLEET Alternative Fuel Life-Cycle Environmental and Economic Transportation
AFM Administrative & Financial Management (older link archive)
AFMD Acquisition and Facilities Management Division (older link archive; archive2)
AFMER Annual Firearms Manufacturers And Export Report (older link archive)
AFMLS Asset Forfeiture and Money Laundering Section (changed to MLARS)
AFMS Asset Forfeiture Management Staff
AFMSS Automated Fluid Minerals Support System
AFP Asset Forfeiture Program
AFPS American Forces Press Service (merged into DoD News)
AFRH Armed Forces Retirement Home
AFRI Agriculture and Food Research Initiative (older link archive)
AFRPS Animal Feed Regulatory Program Standards (older link archive; archive2; archive3)
AFS Air Facility System (unable to verify 2/16) | Armed Forces Sports
AFSC Alaska Fisheries Science Center (older link archive)
AFSIC Alternative Farming Systems Information Center (older link archive; archive2)
AFSP Alien Flight Student Program (older link archive) | Annual Filing Season Program
AFSS Animal Feed Safety System (older link archive)
AFUE Aerial Firefighting Use and Effectiveness
AG Attorney General of the United States
AG2PI Agricultural Genome to Phenome Initiative (older link archive)
AGDC Alaska Geospatial Data Clearinghouse (discontinued)
AgFF Agriculture, Forestry, and Fishing Program (older link archive)
AGGI Annual Greenhouse Gas Index
AGID AGing, Independence, and Disability Program Data Portal (changed from AGing Integrated Database 11/19)
AGIL Animal Genomics and Improvement Laboratory (older link archive)
AGILE Advanced Graphic Intelligence Logical Computing Environment
AGNPS AGricultural Non-Point Source Pollution Model (unable to verify 10/22)
AGO Acquisition and Grants Office, NOAA (older link archive; archive2) | America's Great Outdoors Initiative (unable to verify 9/15)
AGRICOLA Agricultural OnLine Access (older link archive)
AGS Atmospheric and Geospace Sciences
AgVets Enhancing Agricultural Opportunities for Military Veterans Program (older link archive)
AGWA Automated Geospatial Watershed Assessment (older link archive)
AHAR Annual Homeless Assessment Report (older link archive)
AHAW America's Heroes at Work (unable to verify 2/19)
AHCaH Acute Hospital Care at Home
AHCPR Agency for Health Care Policy and Research (changed to AHRQ)
AHCY Assistance for Homeless Children and Youth
AHDR Animal Health and Disease Research Capacity Program (older link archive)
AHEAD America’s HIV Epidemic Analysis Dashboard
AHEC Area Health Education Centers (older link archive; archive2)
AHED Astrobiology Habitable Environments Database
AHERU Agroclimate and Hydraulic Engineering Research Unit
AHHS American Healthy Homes Survey (unable to verify 6/23)
AHMR Abandoned Hardrock Mine Reclamation
AHPP Alternative Housing Pilot Program (unable to verify 8/20)
AHPS Advanced Hydrologic Prediction Service
AHRC Advanced Housing Research Center (older link archive; archive2; archive3)
AHRF Area Health Resource Files (older link archive; archive2)
AHRQ Agency for Healthcare Research and Quality
AHS American Housing Survey
AI National Artificial Intelligence Initiative
AIA Agriculture Innovation Agenda
AIAC Artificial Intelligence Advancement Council
AICC Alaska Interagency Coordination Center
AID Agency for International Development
AIDD Administration on Intellectual and Developmental Disabilities (older link archive)
AIDS Acquired Immune Deficiency Syndrome (older link archive)
AIEO American Indian Environmental Office
AIES Annual Integrated Economic Survey
AILO American Indian Liaison Office (changed to ONAA)
AIM Aeronomy of Ice in the Mesosphere (older link archive) | Assessment, Inventory, and Monitoring
AIP Airport Improvement Program | Animal Improvement Program (older link archive) | Arctic Investigations Program (older link archive)
AIPD Artificial Intelligence Patent Dataset
AIR Aircraft Certification Service
AirMSPI Airborne Multi-angle SpectroPolarimeter Imager
AIRR American Indian Records Repository (older link archive)
AIRS Aerometric Information Retrieval System (changed to AFS)
AIS Automatic Identification System (Coast Guard) | Automatic Identification System (MarineCadastre)
AISC U.S. AI Safety Institute Consortium
AITC Agriculture in the Classroom Program (older link archive; archive2)
AITO Artificial Intelligence & Technology Office (changed to Office of Critical and Emerging Technology, then Office of Critical and Emerging Technologies; older link archive)
AIVRS American Indian Vocational Rehabilitation Services
AIVRS-TAC American Indian Vocational Rehabilitation Services Training and Technical Assistance Center (changed to AIVRTTAC)
AIVRTTAC American Indian Vocational Rehabilitation Training and Technical Assistance Center (older link archive)
AJAX Alpha Jet Atmospheric eXperiment
AK CASC Alaska Climate Adaptation Science Center (older link archive; archive2; archive3)
AK CSC Alaska Climate Science Center (changed to AK CASC)
AL Aerosol Laboratory (unable to verify 7/23)
ALAC Agricultural Labor Affairs Coordinator (older link archive)
ALCC Arctic Landscape Conservation Cooperative (unable to verify 12/21)
ALCF Argonne Leadership Computing Facility
ALCP Assisted Living Conversion Program (older link archive)
ALEX Argonne Liquid Metal Experiment Facility
ALFD Advertising, Labeling and Formulation Division (older link archive; archive2)
ALFRED Archival Federal Reserve Economic Data
ALIC Archives Library Information Center
ALL Adult Literacy and Lifeskills Survey
A/LM Office of Logistics Management
ALMIFI American Latino Museum Internship and Fellowship Initiative
ALOHA Areal Locations of Hazardous Atmospheres
ALP Accelerating Local Potential (older link archive)
ALS Academic Libraries Survey (older link archive) | Advanced Light Source
ALSDA Ames Life Sciences Data Archive
ALS-U Advanced Light Source Upgrade
ALTBIB Alternatives to Animal Testing Bibliography (older link archive; archive2; archive3)
ALWRI Aldo Leopold Wilderness Research Institute
AMA Agricultural Management Assistance program (older link archive)
AMAGIT Advanced Mobility & Grid Integration Technology
AMB Administrative Management Branch | Assimilation and Modeling Branch (unable to verify 8/17)
AMBER America’s Missing: Broadcast Emergency Response (older link archive)
AMCD Air Methods and Characterization Division
AMCG Office of Acquisitions Management, Contracts and Grants (unable to verify 1/22)
AMD Advanced Molecular Detection (older link archive)
AMDAR Aircraft Meteorological Data Reports
AME Aviation Medical Examiner (older link archive)
AMED African and Middle Eastern Division (older link archive)
AMES Ames Laboratory
AMEWS Advanced Materials for Energy-Water Systems Center
AMH America's Marine Highway Program (older link archive)
AMHWG Arctic Mental Health Working Group (defunct as of 2018)
AMIS Awards Management Information System
AMJP Aviation Manufacturing Jobs Protection Program
AML Abandoned Mine Lands (older link archive) | Abandoned Mineral Lands
AMLER Abandoned Mine Land Economic Revitalization Program
AMMOS Advanced Multi-Mission Operations System
AMMTO Advanced Materials and Manufacturing Technologies Office (older link archive)
AMNPO Advanced Manufacturing National Program Office (older link archive)
AMO Advanced Manufacturing Office (split 10/22 into AAMTO and IEDO; older link archive; archive2; archive3; archive4) | Air and Marine Operations
AMP Accelerating Medicines Partnership
AMPD Air Markets Program Data (changed to CAMPD)
AMPM USDA Automated Multiple-Pass Method
AMP® SCZ Accelerating Medicines Partnership program for Schizophrenia
AMQP Animal Model Qualification Program
AMR Antimicrobial Resistance programs
AMS Agricultural Marketing Service
AMSO Ames Site Office (older link archive)
AMT Alternative Minimum Tax (older link archive)
AMTech Advanced Manufacturing Technology Consortia
AMTIC Ambient Monitoring Technology Information Center
AMTL Advanced Mobility Technology Laboratory (older link archive)
Amtrak National Railroad Passenger Corporation
AOML Atlantic Oceanographic and Meteorological Laboratory
A/OPE Office of the Procurement Executive
AOSP Airspace Operations and Safety Program (older link archive)
AOSSP Aircraft Operator Standard Security Program
AOTUS Archivist of the United States (older link archive; archive2)
AP U.S. Additional Protocol
APAC Astrophysics Advisory Committee
APAD Advanced Planning and Analysis Division (unable to verify 6/15)
APB CJIS Advisory Policy Board (older link archive; archive2)
APC Automated Passport Control (older link archive)
APCCA Advancing Protection and Care for Children in Adversity
APCD All Payer Claims Databases (older link archive; archive2)
APCF Advanced Protein Characterization Facility
APD Tribal Advance Planning Document
APEC Asia-Pacific Economic Cooperation (unable to verify 2/21; older link archive)
APFO Aerial Photography Field Office (changed to GEO)
APH American Printing House for the Blind
APHIS Animal and Plant Health Inspection Service (older link archive)
APIS Advance Passenger Information System (older link archive) | Alcohol Policy Information System
APLAA Office of Asian Pacific, Latin American, and African Analysis (unable to verify 1/17)
APLIC Alaska Public Lands Information Centers (older link archive)
APNSA Assistant to the President for National Security Affairs
APOD Astronomy Picture of the Day
APP Accelerating Promising Practices for Small and Rural Libraries Program | Adolescent Pregnancy Prevention (older link archive; archive2) | Aerosol Properties & Processes program | Apex Predators Program (older link archive; archive2) | Appellate Section | Office of Airport Planning and Programming
APPEL Academy of Program/Project & Engineering Leadership
AppFT Patent Application Full-Text and Image Database (replaced by Patent Public Search; older link archive)
APPLETREE ATSDR’s Partnership to Promote Local Efforts to Reduce Environmental Exposure
APPS Active Partners Performance System
APRHB Air Pollution and Respiratory Health Branch (unable to verify 1/20)
APS Adult Protective Services | Advanced Photon Source
APS-TD Applied Physics and Superconducting Technology Division
APT Alcohol Policy Taxonomy
APTF Advanced Placement Test Fee (older link archive)
APTI Air Pollution Training Institute (decommissioned and replaced by AirKnowledge; older link archive)
AQA Air Quality Analysis
AQI Agricultural Quarantine Inspection (older link archive) | Air Quality Index
AQIM Agricultural Quarantine Inspection Monitoring
AQIP Air Quality Implementation Plans
AQPI Advanced Quantitative Precipitation Information
AQS Air Quality System
AR & PSP Antimicrobial Resistance & Patient Safety Portal
ARB Administrative Review Board (older link archive) | Animal Resources Branch (replaced by CMB)
ARC Accelerating Rare disease Cures Program (older link archive; archive2; archive3) | Administrative Resource Center (older link archive) | Agriculture Risk Coverage | Appalachian Regional Commission | Applied Research Center (unable to verify 10/21) | Arbovirus Reference Collection | Arctic Report Card | Mental Health and Aviation Medical Clearances Rulemaking Committee
ARCIS Archives and Records Centers Information System
ARCOS Automation of Reports and Consolidated Orders System (older link archive)
ARC/PLC Agriculture Risk Coverage/Price Loss Coverage Program
ARCTAS Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (older link archive)
ARCTIC U.S. Arctic Research Commission (also, USARC)
ARCWEST Arctic Whale Ecology Study
ARC-X Climate Change Adaptation Resource Center
ARD Air Resources Division | Annual Report Dashboard | Arrest-Related Deaths
ARDAP Accelerator Research & Development and Production
ARDI Alcohol-Related Disease Impact
ARDIS Automated Radiation Portal Monitor Data Integration System
ARDP Advanced Reactor Demonstration Program
AREWG Arctic Renewable Energy Working Group
ARIA Advanced Rapid Imaging and Analysis | Assessing Risks and Impacts of AI | Automated Research Impact Assessment
ARIEL Atmospheric Remote-sensing Infrared Exoplanet Large-survey
ARIES Advanced Research on Integrated Energy Systems | Automated Real-time Identity Exchange System
ARIS Air Resources Information System (changed to Air Quality in Parks)
ARISE Appalachian Regional Initiative for Stronger Economies (older link archive)
ARL Adoption Readiness Level | Air Resources Laboratory
ARM Agency Relationship Management & Engagement Division (older link archive) | Atmospheric Radiation Measurement
ARMD Aeronautics Research Mission Directorate (older link archive)
ARME Agriculture Risk Management Education Partnerships
ARMI Amphibian Research and Monitoring Initiative
ARMS Agricultural Resource Management Survey
ARNet Acquisition Reform Network (changed to AcqNet)
ARNOLD All Roads Network Of Linear Referenced Data (older link archive)
ARO Agency Records Officer
AROC Agency Records Officer Credential
ARP Acid Rain Program (older link archive) | AIDS Research Program (changed to HRP) | American Rescue Plan | Animal Resource Program | Applied Research Program (defunct; merged into BRP, EGRP, and HDRP) | Archival Recovery Program
ARP-AIRE American Rescue Plan American Indian Resilience in Education
ARP EANS ARP Emergency Assistance to Non-Public Schools
ARP ESSER ARP Elementary and Secondary School Emergency Relief Fund
ARP HCY ARP Elementary and Secondary School Emergency Relief – Homeless Children and Youth
ARP-OA SEA American Rescue Plan-Outlying Areas State Educational Agencies
ARPA-E Advanced Research Projects Agency-Energy
ARPA-H Advanced Research Projects Agency for Health
ARRA American Recovery and Reinvestment Act
ARRI Appalachian Regional Reforestation Initiative (older link archive)
ARRT Advanced Rehabilitation Research and Training
ARS Agricultural Research Service | Area Ruggedness Scale | Atmospheric Remote Sensing
ARSET Applied Remote Sensing Training Program
ART Accessibility Requirements Tool (older link archive)
ARTS Annual Retail Trade Survey (older link archive)
ASF DAAC Alaska Satellite Facility Distributed Active Archive Center (older link archive; archive2)
ASGC Atmospheric Sciences & Global Change (changed to Atmospheric Science)
ASH Office of Security & Hazardous Materials Safety | Office of the Assistant Secretary for Health (changed to OASH)
ASHA American Schools and Hospitals Abroad
AS-IA Office of the Assistant Secretary – Indian Affairs
ASIAS Aviation Safety Information Analysis and Sharing (older link archive)
ASIST Actionable and Strategic Integrated Science and Technology
ASIWG Adaptation Science Interagency Working Group (unable to verify 10/23)
ASJ Annual Survey of Jails (older link archive)
ASL Assistant Secretary for Legislation
ASLBP Atomic Safety and Licensing Board Panel
ASM Annual Survey of Manufactures (older link archive) | At-Sea Monitoring Program (older link archive)
ASMD Atmospheric Sciences Modeling Division
ASO Airborne Snow Observatory | Argonne Site Office (older link archive)
ASOA Acquisition Support and Operations Analysis (replaced by CDS)
ASOS Automated Surface Observing System (older link archive)
ASP Airborne Science Program
ASPE Assistant Secretary for Planning and Evaluation
ASPECT Airborne Spectral Photometric Environmental Collection Technology
ASPEP Annual Survey of Public Employment & Payroll
ASPIRE Advancing State Policy Integration for Recovery and Employment | Algorithm Suggesting Proportionate Incident Response Engagement (older link archive)
ASPP Annual Survey of Public Pensions
ASPR Administration for Strategic Preparedness and Response (previously, Assistant Secretary for Preparedness and Response; older link archive)
ASR Alternative Summary Reporting | Annual Survey of Refugees (older link archive) | Antenna Structure Registration | Atmospheric System Research
ASRAC Appliance Standards and Rulemaking Federal Advisory Committee
ASRE Atmospheric Science for Renewable Energy Development (older link archive)
ASRS Aviation Safety Reporting System
AST Division of Astronomical Sciences | Office of Commercial Space Transportation
ASTEP Astrobiology Science & Technology for Exploring Planets (unable to verify 4/16)
ASTER Advanced Spaceborne Thermal Emission and Reflection Radiometer
ASTHROS Astrophysics Stratospheric Telescope for High Spectral Resolution Observations at Submillimeter-wavelengths
ASTR Annual Statistical Transparency Report
ATA Annual Threat Assessment (older link archive) | Office of Antiterrorism Assistance - changed to Antiterrorism Assistance Program (older link archive; archive2)
ATAK Android Team Awareness Kit
ATB Annual Technology Baseline
ATCMTD Advanced Transportation and Congestion Management Technologies Deployment Program
ATCR Air Travel Consumer Report
ATCSCC Air Traffic Control System Command Center (older link archive)
ATD Advanced Technologies Division (unable to verify 11/23; older link archive, as Advanced Technology Division) | Advanced Technology Demonstrator | Alternatives to Detention
ATDC Agency Transition Directors Council (unable to verify 2/18)
ATDD Atmospheric Turbulence and Diffusion Division (older link archive)
ATDP Addiction Treatment Discovery Program (older link archive; archive2)
ATE Advanced Technological Education (older link archive)
ATF Accelerator Test Facility | Bureau of Alcohol, Tobacco, Firearms & Explosives
ATFE Bureau of Alcohol, Tobacco, Firearms & Explosives
ATIP Anti-Trafficking in Persons (changed to OTIP) | Automated Track Inspection Program (unable to verify 5/24)
ATJ Office for Access to Justice
ATLAS Argonne Tandem Linac Accelerator System
ATM Agricultural Trade Multipliers
ATMB Analytic Tools and Methods Branch (merged into DPHID)
ATN Animal Telemetry Network
ATO Air Traffic Organization
ATOC Aviation Training and Operations Center
ATom Atmospheric Tomography Mission (older link archive)
ATOMIC Atlantic Tradewind Ocean–Atmosphere Mesoscale Interaction Campaign
ATP Advanced Technology Program (unable to verify) | Agricultural Trade Promotion Program
ATR Antitrust Division
ATRF Advanced Technology Research Facility (older link archive)
ATRO Advanced Technology Research Office
ATS Adoptions Tracking Service | Automated Targeting System
ATSD-IO Assistant to the Secretary of Defense for Intelligence Oversight (changed to DOD SIOO)
ATSDR Agency for Toxic Substances and Disease Registry
ATTAINS Assessment and Total Maximum Daily Load Tracking and Implementation System (older link archive)
ATTREX Airborne Tropical TRopopause EXperiment (older link archive)
ATUS American Time Use Study
ATVM Advanced Technology Vehicles Manufacturing (older link archive; archive2; archive3; archive4; archive5; archive6)
ATW Air Toxics Web Site
AVA ASTER Volcano Archive
AVC Bureau of Arms Control, Verification and Compliance (changed to ADS; older link archive)
AVERT AVoided Emissions and geneRation Tool (older link archive; archive2)
AVIA Animal and Veterinary Innovation Agenda (older link archive)
AVID Assimilation and Verification Innovation Division (older link archive; archive2)
AVMPI Audiovisual Media Preservation Initiative
AVO Alaska Volcano Observatory
AVRS AIDS Vaccine Research Subcommittee
AVS Applicant/Violator System (older link archive; archive2) | Aviation Safety
AVSO Appraisal and Valuation Services Office
AV TEST Automated Vehicle Transparency and Engagement for Safe Testing Initiative (older link archive)
AWAE Air, Water, & Aquatic Environments Program (changed to W&W)
AWAHDC Animal Welfare Act History Digital Collection (older link archive)
AWAKEN American WAKE experimeNt
AWARE Advancing Wellness and Resiliency in Education | Agency-Wide Adaptive Risk Enumeration
AWBERC Andrew W. Breidenbach Environmental Research Center
AWC Angel Watch Center | Aviation Weather Center
AWE Academy for Women Entrepreneurs
AWEP Agricultural Water Enhancement Program (unable to verify 10/22; older link archive)
AWFCG Alaska Wildland Fire Coordinating Group
AWIC Animal Welfare Information Center (older link archive; archive2)
AWIPS Advanced Weather Interactive Processing System
AWL Areawide Leasing Study
AWOIS Automated Wreck and Obstruction Information System
AWOS Automated Weather Observing System (older link archive; archive2)
AWTP Advanced Wireless Test Platforms (unable to verify 10/22; older link archive)
AWTS Annual Wholesale Trade Survey (older link archive)
AxCS Accelerating Cancer Screening
AXL Aquatic Experimental Lab (unable to verify 8/23)
AZWSC Arizona Water Science Center