Abbreviation Definition
AAAAuthority Authorization AAA
AAAAutonomous Administrative Authority
AAEAAssociation of African Election Authorities
AAIAirports Authority of India
AAIAAir Accident Investigation Authority
AALAAdventurous Activities Licensing Authority
AALAAdventure Activities Licensing Authority
AAOCCAuthority Accuracy Objectivity Currency and Coverage
AARAAccess and Amendment Refusal Authority
ABCAAusable Bayfield Conservation Authority
ABCDAuthority Bias Coverage And Date
ABEIAuthority of Broadcasting and Electronic Information
ABIMAmerican Board of Internal Medicine
ABOAuthorities Budget Office
ABRSAuthority of British Riding Schools
ACAAllied Control Authority
ACAAAda Conformity Assessment Authority
ACAAAllegheny County Airport Authority
ACFAAged Care Financing Authority
ACMAAustralian Communications and Media Authority