(a) The regulations now or hereafter adopted or promulgated by the Mayor of the District of Columbia or the Council of the District of Columbia for the protection of health, including the penalty provisions of such regulations, shall extend and apply to all restaurants, coffee shops, cafeterias, short-order cafes, luncheonettes, soda fountains, and all other eating and drinking establishments, operated within the District of Columbia on premises owned or held under lease by the government of the United States or any federal department or agency, irrespective of whether such establishments are operated by the United States or any federal department or agency or by any other person, firm, association, or corporation, and also irrespective of whether such establishments are operated for profit or otherwise.
(b) This section shall not apply to the United States Senate and House of Representatives restaurants.