D.C. Mun. Regs. tit. 25-G, § 306
306.1 Jewelry inserted into a healed piercing that has not been previously worn or contaminated shall be disinfected in accordance with manufacturer's instructions with a non-hazardous disinfectant approved by the EPA.
306.2 Jewelry placed in newly pierced skin shall be sterilized prior to piercing as specified in Subsection 304.12 or shall be purchased pre-sterilized as specified in Sections 309, 310, and 312.
SOURCE: Final Rulemaking published at 64 DCR 13496 (December 29, 2017).