Budget at Completion 
bacterial artificial chromosome 
Blood Alcohol Content 
Buffer Access Card 
biological activated carbon 
Bioremediation Action Committee 
Biotechnology Advisory Committee 
Booster Assembly Contractor 
Bordeaux Astrographic Catalog 
British Aerospace Corporation 
Back At Computer 
Battle Area Clearance 
Bicycle Advisory Committee 
Boeing Aerospace Company 
Boeing Aerospace Corporation 
Boeing Aircraft Company 
boric acid concentrator 
British Association of Counselling 
Broadband Access Center 
Broadband Assurance Contact 
Budget Activity Code 
Budget Advisory Committee 
Bunker Adjustment Charge 
baccalaureat 
Bachelor of Acupuncture 
bacitracin 
Back Association of Canada 
Back Course 
baclofen 
bacteria