D.C. Mun. Regs. tit. 17, § 3728
3728.01 It shall be unlawful for any person licensed under this chapter to depict a barber pole in advertising or to place a barber pole in a location that would create or tend to create the impression to members of the public that a business located at or near the barber pole is a barbershop unless the licensee holds the licenses required to operate a barbershop or the licensee leases space or a booth to a licensed barber pursuant to Section 3720 of this chapter.
SOURCE: Final Rulemaking published at 55 DCR 7559 (July 11, 2008).