What does ATCA stand for?

Advanced Tanker/Cargo Aircraft (SAUS)

Advanced Telecom Computing Architecture (READ)

Agreement on Trade in Civil Aircraft - A world trade organization program

Agreement on Trade in Civil Aviation (JAGO)

Airedale Terrier Club of America (EA)

Air Traffic Conference of America - Defunct (EA)

Air Traffic Control Advises (FAAC)

Air Traffic Control Assistant (DA)

Air Traffic Control Association (EA)

Air Training Corps of America

Alien Tort Claims Act - Law

Allied Tactical Communications Agency - Brussels, Belgium - NATO (NATG)

American Teilhard de Chardin Association - Later, ATAFM

American Theater (or Theatre) Critics Association (SAUO)

American Transit Collectors' Association (EA)

Antique Telephone Collectors Association - Later, TCI (EA)

Antique Toy Collectors of America (EA)

Antique Truck Club of America (EA)

Associated Traffic Clubs of America (SAUO)

Atlantic Tuna Convention Act of 1975

Attitude and Translation Control Assembly - Aviation (MCD)

Australian Terrier Club of America (EA)

Australian Tuna Canners Association (SAUS)

Australia Telescope Compact Array

Automatic Transistor Card Analyzer (SAUS)

Automatic Tuned Circuit Adjustment - Telecommunications (OA)