ICTA - an international non-profit organization founded in 1964 to enhance the quality of professional practice in the travel industry through education, testing and certification.
IATAN - a non-profit organization that appoints travel agencies and travel agents on behalf of its customer airlines. It provides registration and ID services for both travel agencies and professional travel agents.
ARTA - non-profit association representing travel agents exclusively. The site offers travel industry headline news and resources for small retail agencies.