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

11B-213.2.1 Unisex (single-user or family) toilet and unisex (single-user or family) bathing rooms.

Unisex (single-user or family) toilet rooms shall contain not more than one lavatory, and not more than two water closets without urinals or one water closet and one urinal. Unisex (single-user or family) bathing rooms shall contain one shower or one shower and one bathtub, one lavatory, and one water closet. Doors to unisex (single-user or family) toilet rooms and unisex bathing rooms shall have privacy latches.