D.C. Mun. Regs. tit. 25-F, § 500
500.1 Each tanning facility's plumbing system and hoses conveying water shall be constructed and repaired with approved materials according to the International Plumbing Code (2006 edition), Subtitle F (Plumbing Code Supplement) of Title 12 of the District of Columbia Municipal Regulations.
500.2 Each tanning facility's water filter shall be made of safe materials.
SOURCE: Final Rulemaking published at 60 DCR 3582 (March 15, 2013).