D.C. Mun. Regs. tit. 20, § 711
711.1 Any pump and compressor handling volatile organic compounds shall have mechanical seals or other equivalent equipment approved by the Mayor.
SOURCE: Section 3 of the District of Columbia Air Pollution Control Act of 1984, D.C. Law 5-165, § 711, 32 DCR 565, 642 (February 1, 1985).