Adress Translation Cache
Adress Translation Controller
Aerial Tuning Capacitor
Air Transport Committee
Airman, Third Class
Alcoa Technology Center
Alloy-Tin Couple
American Technical Ceramics
Antenna Tuning Capacitor
Applied Technology Center
Arbitration Timing Control
Armament Training Center
Army Topographic Command
Ashton-Tate Corporation
Association of Translation Companies
Atlanta Crackers
Atom Count
Australian Telecommunications Commission
Australian Trade Commission
Authorization to Copy
Automatic Through Center
Automatic Toggle Clamp
Automatic Tool Change
Automation Training Center
Aberdeen Test Center's
Activités et Techniques de Communication
Administrator Training Center
Advanced Training Centre
Aircraft Technical Committee
Airport Traffic Control
Albuquerque Treatment Center
Alcohol Test Committee
Allowable Threshold Concentration
Alphaville Tênis Clube
amended Type Certification
Analog Technology Corp
Arab Tourism Channel
Armoloy Technology Coatings
Asociación de Transportadores de Carga
Assistant Test Conductor