1. (a) For air transportation taking place before January 1, 2019, each reporting carrier shall report monthly to the Department on a domestic system basis, excluding charter flights, the total number of passengers enplaned system-wide and the total number of mishandled-baggage reports filed with the carrier.

2. (b) For air transportation taking place on or after January 1, 2019, each reporting carrier shall report monthly to the Department on a domestic system basis, excluding charter flights:

   1. (1) The total number of checked bags enplaned, including gate checked baggage, “valet bags,” interlined bags, and wheelchairs and scooters enplaned in the aircraft cargo compartment for the reportable flights operated by the reporting carrier and separately for the reportable flights held out with only the reporting carrier's airline designator code and operated by any code-share partner that is a certificated air carrier or commuter air carrier,
   2. (2) The total number of wheelchairs and scooters that were enplaned in the aircraft cargo compartment for the reportable flights operated by the reporting carrier and separately for the reportable flights held out with only the reporting carrier's airline designator code and operated by any code-share partner that is a certificated air carrier or commuter air carrier,
   3. (3) The number of mishandled checked bags, including gate-checked baggage, “valet bags,” interlined bags and wheelchairs and scooters that were enplaned in the aircraft cargo compartment for the reportable flights operated by the reporting carrier and separately for the reportable flights held out with only the reporting carrier's airline designator code and operated by any code-share partner that is a certificated air carrier or commuter air carrier, and
   4. (4) The number of mishandled wheelchairs and scooters that were enplaned in the aircraft cargo compartment for the reportable flights operated by the reporting carrier and separately for the reportable flights held out with only the reporting carrier's airline designator code and operated by any code-share partner that is a certificated air carrier or commuter air carrier.
3. (c) The information in paragraphs (a) and (b) of this section shall be submitted to the Department within 15 days after the end of the month to which the information applies and must be submitted with the transmittal accompanying the data for on-time performance in the form and manner set forth in accounting and reporting directives issued by the Director, Office of Airline Information.

[Dockt. No. DOT-RITA-2011-0001, 81 FR 76306, Nov. 2, 2016; Dockt. No. DOT-OST-2014-0056; 81 FR 76827, Nov. 3, 2016; Doc. No. DOT-RITA-2011-0001, 82 FR 14438, Mar. 21, 2017]