Abbreviations beginning with a

APTAAtlantic Provinces Trucking Association
Miscellaneous

APTAAssociation for Promotion of Tourism to Africa
Regional » African

APTAAmerican Platform Tennis Association
Sports » Tennis

APTAAMAdvanced Processor Technology for Air to Air Missiles
Governmental » Military

APTAAMAdvanced Processor Technology for Air-to-Air Missiles
Governmental

APTACAcrylamidopropyltrimethylammonium Chloride
Academic & Science

APTACAssociation of Procurement Technical Assistance Centers
Community

APTACApplied Police Training And Certification
Governmental

APTAFAsociación Profesional de Técnicos Auxiliares de Farmacia de Valencia y Provincia
Academic & Science

APTAPAccessibility Planning Training and Advisory Programme (Department for Transport; UK)
Governmental

APTAPArmy Pilot to Airline Pilot
Miscellaneous

APTBAsia Pacific Tax Bulletin
Business » Tax

APTBAir Pollution Technology Branch
Computing » Technology

APTBAir Pollution Technology Branch
Governmental » Environmental

APTBAir Polution Technology Branch of the EPA
Governmental » Environmental

APTBApa Pun Tak Boleh
International