; and (3) that, if it is determined that spectrum designated for aviation use is not suitable for operations by unmanned aircraft systems, includes recommendations of other spectrum frequencies that may be appropriate for such operations. (b) Definitions In this section: (1) Unmanned aircraft system The term unmanned aircraft system means an unmanned aircraft and associated elements (including communication links and the components that control the unmanned aircraft) that are required for the pilot in command to operate safely and efficiently in the national airspace system. (2) UTM The term UTM means an unmanned aircraft traffic management system or service. 349. U.S. Counter-UAS system review of interagency coordination processes (a) In general Not later than 60 days after that date of enactment of this Act, the Administrator of the Federal Aviation Administration, in consultation with government agencies currently authorized to operate Counter-Unmanned Aircraft System (C-UAS) systems within the United States (including the territories and possessions of the United States), shall initiate a review of the following: (1) The process the Administration is utilizing for interagency coordination of C-UAS activity pursuant to a relevant Federal statute authorizing such activity within the United States (including the territories and possessions of the United States). (2) The standards the Administration is utilizing for operation of a C-UAS systems pursuant to a relevant Federal statute authorizing such activity within the United States (including the territories and possessions of the United States), including whether the following criteria are being taken into consideration in the development of the standards: (A) Safety of the national airspace. (B) Protecting individuals and property on the ground. (C) Non-interference with avionics of manned aircraft, and unmanned aircraft, operating legally in the national airspace. (D) Non-interference with air traffic control systems. (E) Consistent procedures in the