Standards for the design of bathrooms compliant with the Americans with Disabilities Act are available through the ADA website, ADA.gov. Other independent websites also offer guidelines and ADA-compliant bathroom layout plans, including ADABathroom.com and Bobrick.com.
The U.S. Access Board promulgates design standards to comply with the ADA, explains the website of the U.S. Access Board. These standards are enforced by the Department of Justice except in the case of public transportation facilities, which are overseen by the Department of Transportation. Every public place, as defined in the ADA, must have facilities, including bathrooms, that conform to ADA accessibility requirements, according to the ADA.