The Steering Committee is comprised of representatives with a direct interest and stake in the development and success of the Unified Astronomy Thesaurus. The Committee members serve as representatives of the UAT, promoting it to global astronomy and astrophysics, library and publishing communities, developing test cases and increasing its overall use. The Committee members assess the use of the UAT to gain a broader understanding of its role and impact, and use this understanding to represent the interest of the users when assisting with the refining of the UAT. The Curator focuses on the development of a professional thesaurus, drawing upon outreach and input from the astronomy community. As the steward and owner of the UAT, the American Astronomical Society (AAS) ensures support for the work of the Curator and Committee and the long term development and success of the thesaurus. Committee members serve a one or two year term, with an option to renew. The UAT-SC meets monthly by conference call.
| Alberto Accomazzi (ex officio) | Principal Investigator for the NASA Astrophysics Data System |
| Daina Bouquin | Head Librarian at the Center for Astrophysics | Harvard & Smithsonian |
| Raffaele D’Abrusco | Chandra X-ray Center at the Center for Astrophysics | Harvard & Smithsonian |
| Sebastien Derriere | Observatoire de Strasbourg |
| Katie Frey (ex officio) | Curator of the Unified Astronomy Thesaurus Assistant Head Librarian at the Center for Astrophysics | Harvard & Smithsonian |
| Barbara Kern | Director, Science Libraries at the University of Chicago |
| Graham McCann | Head of Content and Platform Management for IOP Publishing |
| Jenny Novacescu (Chair) | Chief Librarian, Space Telescope Science Institute |
| Henrik Spoon | Physics, Astronomy, and Mathematics Librarian, Cornell University |
| Gretchen Stahlman | Assistant Professor, Department of Library & Information Science at Rutgers, The State University of New Jersey |
| Julie Steffen (ex officio) | Chief Publishing Officer for the American Astronomical Society |
| Sarah Weissman | Senior Software Engineer at the Space Telescope Science Institute |
| Peter Williams | AAS Innovation Scientist |