14 C.F.R. § 380.30 – Solicitation materials.

(a) All solicitation materials for a Public Charter shall include the name of the charter operator and the name of the direct air carrier.
(b) Any solicitation material that states a price per passenger shall also include one of the following:
1. (1) A statement referring to the operator-participant contract for further information about conditions applicable to the charter; or
2. (2) The full text of the operator-participant contract.
(c) Except as set forth in § 380.33a for operator's option plan contracts, if the charter prospectus names alternative dates or cities, any solicitation material that states a price per passenger shall also state that the actual dates or cities have not yet been selected, if that is the case.
(d) Any solicitation material that names a hotel but does not name every hotel named in the operator-participant contract shall also state that substitutions may be made.
(e) In any solicitation material from a direct air carrier, indirect air carrier, or an agent of either, for a charter, charter tour (i.e., a combination of air transportation and ground accommodations), or a charter tour component (e.g., a hotel stay), any price stated for such charter, tour, or component shall be the entire price to be paid by the participants to the air carrier, or agent, for such charter, tour, or component.