Glossary I

IAAPA  is the International Association of Amusement Parks & Attractions http://www.iaapa.org/

IACC  is the International Association of Conference Centers http://www.iacconline.com/

IACVB  is the International Association of Convention & Visitor Bureaus http://www.iacvb.org/

IAD  is the Airport Code of Washington DC - Dulles International in the USA
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IAG  is the Airport Code of Niagara Falls International in the USA
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IAH  is the Airport Code of Houston, Intercontinental, TX in the USA
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IATA --->International Air Transport Association

IATAN  is the International Airlines Travel Agent Network - administers the IATAN card, the only widely accepted form of legitimate Travel Agent identification as distinguished from the often-fake photo ID cards distributed by the so-called " card mills "

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Other definition:
IATAN  is the International Airlines Travel Agent Network.