36 C.F.R. § 1005.9
(a) The proprietor, owner or operator and the employees of any hotel, inn, lodge, or other facility or accommodation offered to or enjoyed by the general public within the area administered by the Presidio Trust and, while using such area, any commercial passenger-carrying motor vehicle service and its employees, are prohibited from:
(b) Each such proprietor, owner, or operator shall post the following notice at such locations as will insure that the notice and its contents will be conspicuous to any person seeking accommodations, facilities, services, or privileges:
Notice This is a facility operated in an area under the jurisdiction of the Presidio Trust. No discrimination by segregation or other means in the furnishing of accommodations, facilities, services, or privileges on the basis of race, creed, color, ancestry, sex, age, disabling condition or national origin is permitted in the use of this facility. Violations of this prohibition are punishable by fine, imprisonment, or both. Complaints of violations of this prohibition should be addressed to the Executive Director, The Presidio Trust, P.O. Box 29052, San Francisco, CA 94129-0052.