36 CFR Part 1195 Standards for Accessible Medical Diagnostic Equipment

M301.2.4 Unobstructed Transfer.

Each transfer surface shall provide two unobstructed sides for patient transfer.

EXCEPTIONS: 1. Obstructions no more than 3 inches (75 mm) deep shall be permitted to extend beyond transfer sides of transfer surfaces provided that such obstructions do not protrude above the tops of transfer surfaces.
2. Temporary obstructions shall be permitted provided that they can be repositioned during transfer to comply with M301.2.4, including Exception 1.