D.C. Mun. Regs. tit. 25, r. 25-D707
Each massage establishment or health spa facility shall maintain toilet facilities for employees, which shall consist of a toilet room or toilet rooms with proper and sufficient water closets and lavatories. Toilet facilities shall be conveniently located and readily accessible to all personnel.
Toilets and urinals provided for employees' use shall be in accordance with the Plumbing Code. Urinals may be substituted for toilets if the substitution is approved by the Department of Consumer and Regulatory Affairs and the Department.
The licensee shall, at a minimum:
A massage establishment or health spa facility that employs both males and females shall have separate toilet facilities for each sex; unless the massage establishment or health spa facility is specifically designated for one (1) gender or the other. This restroom may be located by itself, in a bathroom, or in a locker room.
When locker rooms are provided, there shall be both a male and female locker room available, unless the facility is specifically designated for one (1) gender or the other.
If the massage establishment or health spa facility serves only one (1) gender, a restroom shall be made available for employees of the opposite gender as specified in section 707.4.
Toilet facilities shall be deemed conveniently located and accessible to employees during all hours of operation if they are:
At no time shall the consumers or employees of one (1) gender enter the bathroom, restroom, or locker room of the other gender, except for routine clean-up after all of the consumers are gone or there is a maintenance emergency that cannot be handled by an employee of the same gender as belongs to the restroom, bathroom, or locker room.
Except as provided in section 707.8, restroom, bathroom, or locker room shall be cleared of all patrons of the opposite sex before routine cleaning or maintenance emergency commences by an employee of the opposite gender.
D.C. Mun. Regs. tit. 25, r. 25-D707