D.C. Mun. Regs. tit. 25-B, § 2011
2011.1 Maintenance tools such as brooms, mops, vacuum cleaners, and similar items shall be:
(a) Stored so they do not contaminate food, equipment, utensils, food- contact surfaces, or food-packaging materials; and
(b) Stored in an orderly manner that facilitates cleaning the area used for storing the maintenance tools.
SOURCE: Final Rulemaking published at 56 DCR 5245 (July 3, 2009).