259.4—Contingency plan for lengthy tarmac delays.

(a) Adoption of Plan. Each covered carrier shall adopt a Contingency Plan for Lengthy Tarmac Delays for its scheduled and public charter flights at each large and medium hub U.S. airport at which it operates such air service and shall adhere to its plan's terms.
(b) Contents of Plan. Each Contingency Plan for Lengthy Tarmac Delays shall include, at a minimum, the following:
(1) For domestic flights, assurance that the air carrier will not permit an aircraft to remain on the tarmac for more than three hours unless:
(i) The pilot-in-command determines there is a safety-related or security-related reason (e.g., weather, a directive from an appropriate government agency) why the aircraft cannot leave its position on the tarmac to deplane passengers; or
(ii) Air traffic control advises the pilot-in-command that returning to the gate or another disembarkation point elsewhere in order to deplane passengers would significantly disrupt airport operations.
(2) For international flights that depart from or arrive at a U.S. airport, assurance that the air carrier will not permit an aircraft to remain on the tarmac at a large or medium hub U.S. airport for more than a set number of hours, as determined by the carrier and set out in its contingency plan, before allowing passengers to deplane, unless:
(i) The pilot-in-command determines there is a safety-related or security-related reason why the aircraft cannot leave its position on the tarmac to deplane passengers; or
(ii) Air traffic control advises the pilot-in-command that returning to the gate or another disembarkation point elsewhere in order to deplane passengers would significantly disrupt airport operations.
(3) For all flights, assurance that the air carrier will provide adequate food and potable water no later than two hours after the aircraft leaves the gate (in the case of departure) or touches down (in the case of an arrival) if the aircraft remains on the tarmac, unless the pilot-in-command determines that safety or security considerations preclude such service;
(4) For all flights, assurance of operable lavatory facilities, as well as adequate medical attention if needed, while the aircraft remains on the tarmac;
(5) Assurance of sufficient resources to implement the plan; and
(6) Assurance that the plan has been coordinated with airport authorities at all medium and large hub airports that the carrier serves, including medium and large hub diversion airports.
(c) Amendment of plan. At any time, an air carrier may amend its Contingency Plan for Lengthy Tarmac Delays to decrease the time for aircraft to remain on the tarmac for domestic flights covered in paragraph (b)(1) of this section, for aircraft to remain on the tarmac for international flights covered in paragraph (b)(2) of this section, and for the trigger point for food and water covered in paragraph (b)(3) of this section. An air carrier may also amend its plan to increase these intervals (up to the limits in this rule), in which case the amended plan shall apply only to those flights that are first offered for sale after the plan's amendment.
(d) Retention of records. Each air carrier that is required to adopt a Contingency Plan for Lengthy Tarmac Delays shall retain for two years the following information about any tarmac delay that lasts at least three hours:
(1) The length of the delay;
(2) The precise cause of the delay;
(3) The actions taken to minimize hardships for passengers, including the provision of food and water, the maintenance and servicing of lavatories, and medical assistance;
(4) Whether the flight ultimately took off (in the case of a departure delay or diversion) or returned to the gate; and
(5) An explanation for any tarmac delay that exceeded 3 hours (i.e., why the aircraft did not return to the gate by the 3-hour mark).
(e) Unfair and Deceptive Practice. An air carrier's failure to comply with the assurances required by this rule and as contained in its Contingency Plan for Lengthy Tarmac Delays will be considered an unfair and deceptive practice within the meaning of 49 U.S.C. 41712 that is subject to enforcement action by the Department.