; (10) the number of small businesses involved in the various sectors of the unmanned aircraft industry and operating as primary users of small unmanned aircraft; and (11) any best practices, lessons learned, or policies of jurisdictions outside the United States relating to local or regional regulation and oversight of small unmanned aircraft and other emergent technologies. (c) Report to Congress Not later than 180 days after initiating the study, the Inspector 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 on the results of the study. 439. Study on financing of unmanned aircraft services (a) In general Not later than 60 days after the date of enactment of this Act, the Comptroller General of the United States shall initiate a study on appropriate fee mechanisms to recover the costs of— (1) the regulation and safety oversight of unmanned aircraft and unmanned aircraft systems; and (2) the provision of air navigation services to unmanned aircraft and unmanned aircraft systems. (b) Considerations In carrying out the study, the Comptroller General shall consider, at a minimum— (1) the recommendations of Task Group 3 of the Drone Advisory Committee chartered by the Federal Aviation Administration on August 31, 2016; (2) the total annual costs incurred by the Federal Aviation Administration for the regulation and safety oversight of activities related to unmanned aircraft; (3) the annual costs attributable to various types, classes, and categories of unmanned aircraft activities; (4) air traffic services provided to unmanned aircraft operating under instrument flight rules, excluding public aircraft; (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