D.C. Mun. Regs. tit. 25-G, § 305
305
305.1 All licensed operators shall use marking instruments that are single-use and shall be used only on intact skin that has been treated with a germicidal soap.
305.2 Marking instruments that come in contact with mucous membranes or broken skin shall be single-use.
305.3 All stencils shall be single-use.
305.4 Petroleum jellies, soaps, and other products used in the application of stencils shall be dispensed and applied using an aseptic technique and in a manner that prevents contamination of the original container and its content.
305.5 If measuring the body-piercing site is necessary, clean calipers shall be used and the skin marked using a single-use disposable implement, which includes a toothpick and non-toxic ink or a single-use skin marker, and discarded immediately after the procedure.
SOURCE: Final Rulemaking published at 64 DCR 13496 (December 29, 2017).