; (5) the number of full-time Federal Aviation Administration employees dedicated to unmanned aircraft programs; (6) the use of privately operated UTM and other privately operated unmanned aircraft systems; (7) the projected growth of unmanned aircraft operations for various applications and the estimated need for regulation, oversight, and other services; (8) the number of small businesses involved in the various sectors of the unmanned aircraft industry and operating as primary users of unmanned aircraft; and (9) any best practices or policies utilized by jurisdictions outside the United States relating to partial or total recovery of regulation and safety oversight costs related to unmanned aircraft and other emergent technologies. (c) Report to Congress Not later than 180 days after initiating the study, the Comptroller General shall submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a report containing recommendations on appropriate fee mechanisms to recover the costs of regulating and providing air navigation services to unmanned aircraft and unmanned aircraft systems. 440. Update of FAA comprehensive plan (a) In general Not later than 270 days after the date of enactment of this Act, the Secretary of Transportation shall update the comprehensive plan required by section 332 of the FAA Modernization and Reform Act of 2012 ( 49 U.S.C. 40101 note) to develop a concept of operations for the integration of unmanned aircraft into the national airspace system. (b) Considerations In carrying out the update, the Secretary shall consider, at a minimum— (1) the potential use of UTM and other technologies to ensure the safe and lawful operation of unmanned aircraft in the national airspace system; (2) the appropriate roles, responsibilities, and authorities of government agencies and the private sector in identifying and reporting unlawful or harmful operations and operators of unmanned aircraft