31 CFR § 515.210 - Restrictions on lodging, paying for lodging, or making reservations at certain properties in Cuba.
(a) Except as otherwise authorized pursuant to this part, no person subject to U.S. jurisdiction may lodge, pay for lodging, or otherwise make any reservation for or on behalf of a third party to lodge, at any property in Cuba that the Secretary of State has identified as a property that is owned or controlled by the Cuban government, a prohibited official of the Government of Cuba, as defined in § 515.337, a prohibited member of the Cuban Communist Party, as defined in § 515.338, a close relative, as defined in § 515.339, of a prohibited official of the Government of Cuba, or a close relative of a prohibited member of the Cuban Communist Party. Such properties are identified on the State Department's Cuba Prohibited Accommodations List (CPA List). This prohibition does not apply to certain transactions set forth in paragraph (b) of this section.
The names, addresses, or other identifying details, as relevant, of properties that the Secretary of State has identified as meeting the criteria set forth in this section are incorporated in the CPA List as published in the Federal Register. The CPA List is also accessible through the following page on the State Department's website: www.state.gov/cuba-sanctions/cuba-prohibited-accommodations.
(b) The prohibition in paragraph (a) of this section does not apply to lodging-related transactions initiated prior to the date that the property was added to the CPA List as published in the Federal Register.