Per 28 CFR Part 35 - Nondiscrimination on the Basis of Disability in State and Local Government Services:

Caltrans will use this assessment tool to gauge your agency's minimum compliance with subtitle A of Title II of the Americans with Disabilities Act of 1990 (42 U.S.C 12131-12134), as amended by the ADA Amendments Act of 2008 (ADA Amendments Act) (Pub. L. 110-325, 122 Stat. 3553 (2008)), which prohibits discrimination on the basis of disability by public entities.