The provisions of Chapter 20 [repealed] of Title 3 and of § 47-2809 shall not be applicable to activities conducted in connection with any bona fide regularly scheduled national annual convention of any national association of professional hairdressers or cosmetologists, from which the general public is excluded.
D.C. Code § 47-2810
Mayor, Council and other offices, application of certain sections to boards, commissions and committees, see § 1-321.02. .