42 U.S. Code § 2000a - Prohibition against discrimination or segregation in places of public accommodation
All persons shall be entitled to the full and equal enjoyment of the goods, services, facilities, privileges, advantages, and accommodations of any place of public accommodation, as defined in this section, without discrimination or segregation on the ground of race, color, religion, or national origin.
The operations of an establishment affect commerce within the meaning of this subchapter if (1) it is one of the establishments described in paragraph (1) of subsection (b) of this section; (2) in the case of an establishment described in paragraph (2) of subsection (b) of this section, it serves or offers to serve interstate travelers of a substantial portion of the food which it serves, or gasoline or other products which it sells, has moved in commerce; (3) in the case of an establishment described in paragraph (3) of subsection (b) of this section, it customarily presents films, performances, athletic teams, exhibitions, or other sources of entertainment which move in commerce; and (4) in the case of an establishment described in paragraph (4) of subsection (b) of this section, it is physically located within the premises of, or there is physically located within its premises, an establishment the operations of which affect commerce within the meaning of this subsection. For purposes of this section, “commerce” means travel, trade, traffic, commerce, transportation, or communication among the several States, or between the District of Columbia and any State, or between any foreign country or any territory or possession and any State or the District of Columbia, or between points in the same State but through any other State or the District of Columbia or a foreign country.
Discrimination or segregation by an establishment is supported by State action within the meaning of this subchapter if such discrimination or segregation (1) is carried on under color of any law, statute, ordinance, or regulation; or (2) is carried on under color of any custom or usage required or enforced by officials of the State or political subdivision thereof; or (3) is required by action of the State or political subdivision thereof.
The provisions of this subchapter shall not apply to a private club or other establishment not in fact open to the public, except to the extent that the facilities of such establishment are made available to the customers or patrons of an establishment within the scope of subsection (b) of this section.