The American Association for State and Local History is pleased to present this online community hub for users of Nomenclature 3.0, a hierarchically organized list of object terms used for the cataloging of museum objects. This resource is moderated by an ongoing Nomenclature Committee selected by AASLH to promote and assist with the adoption of Nomenclature 3.0 and to keep Nomenclature a dynamic industry standard, responsive to the needs of the profession. Use this site to learn about Nomenclature 3.0, share news and ask advice, and submit your own proposals for additions and changes for future editions.