D.C. Mun. Regs. tit. 22, r. 22-B3247
A toilet room shall be directly accessible from each resident's room and from each central bathing area without going through the general corridor.
One (1) toilet room may serve two (2) resident rooms, but not more than four (4) beds.
The sink may be omitted from the toilet room if a sink is provided in the room of the resident served by the toilet room.
Each sink shall be installed with a proper trap in order to prevent its drain from clogging.
Grab bars shall be installed in each toilet and bathing compartment.
Each toilet and bathroom shall be equipped with sturdily mounted handrails in order to provide adequate assistance to each resident.
Each bathtub shall be safe for use by residents.
Door hardware on each toilet stall shall be of the type that shall operate both from the inside and outside.
Connection to the nurses call system shall be provided in each toilet, tub, and shower stall and in each toilet room or wash room that is used by a resident.
Each shower in newly constructed facilities shall be no less than four (4) feet square in size, including curbs, to prevent the flow of water from inside the shower.
Each toilet, shower, or tub shall be installed in a separate stall or room.
No less than one (1) one bath tub or shower shall be provided for every twenty (20) residents not otherwise served by bathing facilities in resident rooms.
When multiple toilets are installed in the same room, sinks shall be provided in the ratio of at least one (1) for every three (3) toilets or urinals.
In multiple installations, urinals may be substituted for toilets in male bathrooms in compliance with the 1995 BOCA International Plumbing Code.
No resident toilet or bathing unit shall be used by staff.
There shall be adequate clearance space at the front and each of the sides of the toilet, as well as adequate room for other fixtures and equipment, as needed.
In common living or dining areas on floors where no residents live, at least one (1) toilet and one (1) sink shall be provided for each sex, for every fifty 50) residents. These toilets shall be located adjacent to the common areas.
Rooms shall not be arranged in the facility so that the sole entrance or exit from any bedroom or bathroom is by way of any other bedroom, bathroom, or food-handling area.
D.C. Mun. Regs. tit. 22, r. 22-B3247