2019 California Standards for Accessible Design Guide (effective January 1, 2020 with July 1, 2021 amendments)

11B-809.9.4 Work surfaces.

Work surfaces shall be 36 inches (914 mm) maximum above the finish floor with minimum lengths at the following locations as required by this section:

1. Linear length of 30 inches (762 mm) minimum for installation of a sink.

2. Linear length of 30 inches (762 mm) minimum for work surfaces.

3. A sink and work surface in a single integral unit 60 inches (1524 mm) minimum in length, is permitted.