; and (2) later modified to be used for wildfire suppression operations. (c) Conforming amendments to FAA documents In issuing a rule under subsection (a), the Administrator shall revise the order of the FAA titled Restricted Category Type Certification , issued on February 27, 2006 (FAA Order 8110.56), as well as any corresponding policy or guidance material, to reflect the requirements of this section. (d) Savings provision Nothing in this section shall be construed to limit the authority of the Administrator to take action otherwise authorized by law to protect aviation safety or passenger safety. (e) Definitions In this section: (1) Covered aircraft The term covered aircraft means an aircraft type-certificated in the restricted category under section 21.25 of title 14, Code of Federal Regulations, used for transporting firefighters to and from the site of a wildfire in order to perform ground wildfire suppression for the purpose of extinguishing a wildfire on behalf of, or pursuant to a contract with, a Federal, State, or local government agency. (2) Firefighters The term firefighters means a trained fire suppression professional the transport of whom is necessary to accomplish a wildfire suppression operation. 361. Continuous aircraft tracking and transmission for high altitude balloons (a) Study on effects of high altitude balloons on aviation safety (1) In general Not later than 180 days after the date of enactment of this Act, the Administrator, in coordination with the heads of other relevant Federal agencies, shall brief the appropriate committees of Congress on the effects of high altitude balloon operations that do not emit electronic or radio signals for identification purposes and are launched within the United States and the territories of the United States on aviation safety. (2) Considerations In carrying out this subsection, the Administrator shall consider— (A) current technology available and employed to track high altitude balloon operations described under paragraph (1)