What does ACAI stand for?

Alkali and Clean Air Inspectorate - British (DCTA)

American Christian Association for Israel - Later, American-Israel Cultural Foundation (EA)

American College of Allergy and Immunology (EA)

Atlantic Coast Airlines - NASDAQ symbol

Atlantic Coast Airlines Hldgs - NASDAQ symbol (SPSG)

Atlantic Coast Airlines Holdings - NASDAQ symbol

Atlantic Coast Airlines, Inc. - NASDAQ symbol (SAG)