14 CFR § 250.11 - Public disclosure of deliberate overbooking and boarding procedures.
(a) Every carrier shall cause to be displayed continuously in a conspicuous public place at each desk, station and position in the United States which is in the charge of a person employed exclusively by it, or by it jointly with another person, or by any agent employed by such air carrier or foreign air carrier to sell tickets to passengers, a sign located so as to be clearly visible and clearly readable to the traveling public, which shall have printed thereon the following statement in boldface type at least one-fourth of an inch high:
Airline flights may be overbooked, and there is a slight chance that a seat will not be available on a flight for which a person has a confirmed reservation. If the flight is overbooked, no one will be denied a seat until airline personnel first ask for volunteers willing to give up their reservation in exchange for compensation of the airline's choosing. If there are not enough volunteers, the airline will deny boarding to other persons in accordance with its particular boarding priority. With few exceptions, including failure to comply with the carrier's check-in deadline (carrier shall insert either “of _ minutes prior to each flight segment” or “(which are available upon request from the air carrier)” here), persons denied boarding involuntarily are entitled to compensation. The complete rules for the payment of compensation and each airline's boarding priorities are available at all airport ticket counters and boarding locations. Some airlines do not apply these consumer protections to travel from some foreign countries, although other consumer protections may be available. Check with your airline or your travel agent.
(b) Every carrier shall include with each ticket sold in the United States the notices set forth in paragraph (a) of this section, printed in at least 12-point type. The notice may be printed on a separate piece of paper, on the ticket stock, or on the ticket envelope. The last two sentences of the notice shall be printed in a type face contrasting with that of the rest of the notice.
(c) It shall be the responsibility of each carrier to ensure that travel agents authorized to sell air transportation for that carrier comply with the notice provisions of paragraphs (a) and (b) of this section.
(e) Any air carrier or foreign air carrier engaged in foreign air transportation that complies fully with this part for inbound traffic to the United States need not use the last two sentences of the notices required by paragraph (a) of this subsection.
The following state regulations pages link to this page.