D.C. Mun. Regs. tit. 25, r. 25-B1200
All food processing equipment, utensils, and fixtures shall be designed and constructed of such material and workmanship to be durable, cleanable, and properly maintained in accordance with 21 CFR 110.40 - Equipment and utensils, and the requirements in this chapter.
The design, construction, and use of equipment and utensils shall preclude the adulteration of food with lubricants, fuel, metal fragments, contaminated water, or any other contaminants.
Food processing equipment and utensils that are certified or classified for sanitation either by the National Sanitation Foundation (NSF) International, the Underwriters Laboratories (UL), or the American National Standards Institute (ANSI) shall be deemed in compliance with this Code.
D.C. Mun. Regs. tit. 25, r. 25-B1200