ADP - Adenosine Diphosphate-Ribosylation Factor - Biochemistry (QSUL)
Accident Related Factor - National Highway Traffic Safety Administration Fatal Accident Recording System code
Accretion-Induced Rotational Fragmentation - Astrophysics
Acoustic Range-Finder (MCD)
Active Responsive Factor - Biochemistry
Acute Renal Failure - Medicine
Acute Respiratory Failure - Medicine
Acute Rheumatic Fever - Medicine
Addiction Research Foundation - Fondation de la Recherche sur la Toxicomanie - Formerly, Alcoholism & Drug Addiction Research Foundation (ASC)
Addiction Research Foundation of Ontario Library - UTLAS symbol
Address Reference File (SAUS)
ADP - Adenosine Diphosphate-Ribosylation Factor - Biochemistry
Adventitious Root Formation - Botany
Advertising Research Foundation (EA)
Aerofer, SL - Spain - ICAO designator (FAAC)
Aeronautical Research Foundation
Aerosol Radiative Forcing (ARMP)
Aerospace Recovery Facility (MCD)
Aesthetic Realism Foundation (EA)
Afghan Refugee Fund (EA)
African Research Foundation (EA)
After Receipt of Funds (SAUS)
Agricultural Research Foundation - Oregon State University - Research center (RCD)
Aid to Russia Fund (SAUO)
Airborne Relay Facility (MCD)
Airport Reservation Function - FAA (TAG)
Air Refueling Facility - Military (DOMA)
Air Reserve Facility (ACAE)
Air Reserve Forces
Alarm Reporting Function (VLIE)
Albertville, AL - Location identifier - FAA (FAAL)
Alkali Resistant Factor (SAUS)
Alliance of Reform Forces - Macedonia - Political party
All-Round Fire (SAUS)
Almost Ready to Fly - Remote-control plane
American Radio Forum (SAUO)
American Railroad Foundation - Defunct (EA)
American Rationalist Federation (EA)
American Rehabilitation Foundation - Later, SKI (EA)
American Relief for France (SAUO)
American Resettlement Foundation (SAUO)
American Retail Federation - Later, NRF (EA)
American Retail Foundation (SAUO)
American Rose Foundation (EA)
Andean Reserve Fund (SAUO)
Animal Research Facilities
Animal Research Facility (SAUO)
Anomaly Report Forms (ACAE)
Antarctic Research Facility - Research center (RCD)
Anti-Radar Futur (SAUS)
Apparel Research Foundation - Defunct
Application Replacement Factor
Aquarian Research Foundation (EA)
Aquatic Research Facility - A space laboratory
Arafundi - Language code (ETLW)
Ard Campers & Boat Works, Hahira, GA - Manufacturer code for watercraft hull identification number (USCG)
Area Resource File - Public Health Service - Information service or system (IID)
ARF - Advertising Research Foundation (EA)
Arfendazam - Biochemistry
Armaf - NCIC firearms make code (NCIC)
Armenian Revolutionary Federation - Political party (EY)
Armour Research Foundation - Later, IITRI
Arthritis and Rheumatism Foundation - Later, Arthritis Foundation
ASEAN - Association of Southeast Asian Nations Regional Forum
Asian Regional Forum (SAUO)
Assembly and Refurbishment Facility (SAUS)
Association of Rehabilitation Facilities (SAUO)
Auburn Research Foundation (KSC)
Augmentation Reserve Force (SAUO)
Autoimmunity Research Foundation - Research center (RCD)
Automatic Report Feature (SAUS)
Automatic Reporting Feature (MCD)
Automatic Return Fire - ARPA
Auto-Regressive Random Field (PDAA)
Auto Renumbering Facility (VLIE)
Auxin Response Factor - Biochemistry
Aviation Route Forecast (MCD)
Awareness Research Foundation (EA)
Axial Rotating Filtration
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