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

11B-809.7 Accessible routes.

An accessible route shall be provided complying with Section 11B-809.7. The accessible route shall pass through the primary entry door, through all rooms within the dwelling unit and exterior decks and balconies. The accessible route shall adjoin or overlap clear floor spaces and connect all exterior doors.

Exceptions:

1. An accessible route shall not be required from the interior of the unit into a basement.

2. An accessible route to a garage shall comply with Section 11B-208.3.3.

3. An accessible route shall not be required to rooms or spaces not located on the primary entry level of a multistory dwelling unit.

11B-809.7.1 Width.

The clear width for the accessible route shall be 36 inches (914 mm) minimum.

Exception: The clear width shall be permitted to be reduced to 32 inches (813 mm) minimum at doors.

11B-809.7.2 Changes in level.

Changes in level shall comply with Sections 11B-303.2 and 11B-303.3. Ramps complying with Section 11B-405, elevators complying with Section 11B-407 or platform lifts complying with Section 11B-410 shall be provided where changes in level exceed 1/2 inch (12.7 mm) high.