Accreditation is a widely recognized seal of approval; it is the recognition of a museum's commitment to excellence, accountability, high professional standards, and continued institutional development. The Tyler Museum of Art joins the ranks of some 342 art museums in the nation accredited by the AAM. There are currently 771 accredited museums in the country, including not only art museums but also various types of cultural and educational organizations such as aquariums, zoos, botanical gardens, science centers, history museums and historic sites.

In its formal accreditation, the AAM recognized Tyler Museum of Art for its professional operation and adherence to current and evolving standards and best practices, for its commitment to continued institutional improvement, and for its public service and accountability through fulfillment of its mission. TMA’s mission is that it exists as an educational and cultural center to enrich the lives of East Texas citizens and visitors through the collection, preservation, study, exhibition, interpretation and celebration of the visual arts. Fulfilling all those roles, the Museum exhibits parts of its 1200-plus piece permanent collection and a variety of traveling exhibitions throughout the year.

As part of its mission, Tyler Museum of Art hosts tours for thousands of area school children each year, provides educational lectures and programming, offers a free resource library for art educators and artists, publishes an educational magazine and monographs corresponding with its exhibitions, and serves as a cultural collaborator with other East Texas arts organizations.