What does AATA stand for?

What does AATA mean?

AATA	Ann Arbor Transportation Authority Governmental » Transportation
AATA	American Art Therapy Association Business » Professional Organizations
AATA	American Association of Teachers of Arabic Business » Professional Organizations
AATA	AZ Automobile Theft Authority Business » Professional Organizations
AATA	Abstract Algebra: Theory and Applications Academic & Science » Mathematics
AATA	Association of Alabama Tax Administrators Governmental » State & Local