2010 ADA Standards for Accessible Design Pocket Guide
213.2.1 Unisex (Single-Use or Family) Toilet and Unisex Bathing Rooms.
Unisex toilet rooms shall contain not more than one lavatory, and two water closets without urinals or one water closet and one urinal. Unisex bathing rooms shall contain one shower or one shower and one bathtub, one lavatory, and one water closet. Doors to unisex toilet rooms and unisex bathing rooms shall have privacy latches.