(1) If a room contains not more than 1 water closet, the doorway to the room shall be provided with a full height door that is capable of being locked from the inside.
(2) Except in a room for private use, water closets, urinals, lavatories, showers and bathtubs shall not be visible from the entrance to the room where it contains at least,
(a) two water closets,
(b) one water closet and one urinal,
(c) one shower stall, or
(d) one bathtub.