; (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) An assessment of the progress made by the Administrator with respect to providing airports that are not part 139 airports and local authorities with responsibility for inspection and oversight with guidance described in subparagraphs (A) and (B) of paragraph (1) as it relates to the use of fluorine-free firefighting foam at such airports. (3) Such other information as the Administrator 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 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— (A) the Committees on Transportation and Infrastructure, Energy and Commerce, and Armed Services of the House of Representatives; and (B) the Committees on Commerce, Science, and Transportation, Environment and Public Works, and Armed Services of the Senate. (2) Part 139 airport The term part 139 airport means an airport certified under part 139 of title 14, Code of Federal Regulations.