D.C. Mun. Regs. tit. 25-D, § 511
511.1 Massage supplementary aids shall be dispensed in a manner that prevents cross-contamination of the product, or the product dispenser shall be discarded between customers.
511.2 If the massage therapist picked up and touched the outside of any multiple-use massage supplementary aid bottle or container to dispense product while the massage is in progress, the supplementary aid bottle or container shall be wiped down with a sanitized wiping cloth between customers.
Source: Final Rulemaking published at 56 DCR 7975 (October 9, 2009).