; (C) best practices for the decontamination of existing aircraft rescue and firefighting vehicles, systems, and other equipment used to deploy firefighting foam at part 139 airports; and (D) timelines for the release of policy and guidance relating to part 139 airport implementation plans for obtaining approved military specification products and firefighting personnel training. (2) A comprehensive list of the amount of rolling stock of firefighting foam at each part 139 airport as of the date of the submission of the progress report and the number of gallons regularly kept in reserve at each such airport. (3) An assessment of the progress made by the FAA with respect to providing airports that are not part 139 airports, and local authorities with responsibility for inspection and oversight at such airports, with guidance relating to the use of fluorine-free firefighting foam at such airports that includes the guidance, best practices, and timelines required by paragraph (1) for part 139 airports, but modified to the extent appropriate for application to airports that are not part 139 airports. (4) Such other information as the Administrator of the FAA determines appropriate. (c) Progress report termination date For purposes of subsection (a), the progress report termination date described in this subsection is the date on which the Administrator of the FAA notifies the appropriate committees of Congress that development and implementation of the national transition plan described in subsection (a) is complete. (d) Definitions In this section: (1) Appropriate committees of congress The term appropriate committees of Congress means the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate. (2) FAA The term FAA means the Federal Aviation Administration. (3) Part 139 airport The term part 139 airport means an airport certified under part 139 of title 14, Code of Federal Regulations.