A sink used for food preparation or utensil washing, or a service sink or curbed cleaning facility used for the disposal of mop water or similar wastes, shall not be provided with the handwashing aids and devices required for a handwashing sink as specified in sections 1902, 1903, and 1906.1.
D.C. Mun. Regs. tit. 25, r. 25-B1904