ASTA is based in Alexandria, Virginia, USA, and is the world’s largest association of travel professionals. It has 26,500 members in 170 countries, with the majority in the United States of America. The majority of ASTA’s members are travel agencies. However, travel suppliers, such as airlines, hotels, car rental firms, cruise lines, and tour operators, are also members of ASTA. The society has separate membership categories for students, travel schools, retired travel professionals, retail travel sellers, and others. ASTA members uphold a strict code of ethics, the pledges of which they stake their reputations. It pledges that if consumers ever have a problem with an ASTA member, they can contact the society’s consumer affairs department to file a complaint, and the department will help the complainant resolve it. It publishes a directory to help consumers find their nearest ASTA travel professional.