This publication compares five major regulations and standards on architectural accessibility. It provides a comparison summary of 20 areas within (1) the standards of the Architectural and Transportation Barriers Compliance Board (ATBCB), (2) the standards of the American National Standards Institute, (3) the regulations of the Federal General Services Administration, (4) the Uniform Building Code, and (5) the regulations of the State Department of General Services, Office of State Architect. Nineteen areas are alphabetized according to a category or topic: Arms, Assembly/Performing Areas, Controls/Operating Mechanisms, Doors, Drinking Fountains, Elevators/Lifts, Handrails/Handgrips, Hazard Warnings, Parking, Passenger Loading/Unloading Zones, Ramps, Routes/Spaces, Seating/Work Surfaces, Signage, Stairs, Storage, Telephones, Toilet/Bathing Facilities, and Windows. The twentieth area is devoted to specifications for dwelling units. With the exception of the dwelling unit section, ATBCB standards are used as the basis of comparison. The text is organized in tabular form and indicates major categories and topics, citation numbers of applicable regulations or standards, differences/no differences from ATBCB, and provisions/no provisions in the other regulations and standards. A "summary of coverage" paragraph provides a condensation of the cited regulations or standards. A glossary is appended. (YLB)