Ballistic Aerial Target System
Biosphere-Atmosphere Transfer Scheme
Basic Additional Teleprocessing Suppor…
Basic Attributes Test Score
BATTERIES BATTERIES, INC.
Bay Area Tracking System
Bermuda Atlantic Time Series
Better-looking across the street
Billing and Tracking System
biogenic amine transporters
Biometric Automated Toolset
Biosphere Atmosphere Transfer Scheme
Bit Access Test System
Boundary Area Transportation Study
Bradford Action on Teacher Shortages
Bradley advanced training system
Brilliant Anti-Tank System
British Association for Trauma in Spor…
Brownfields Analytical and Technical S…
Bureau Automated Tracking System
Business Analysis of Train Services