; (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; (3) the use of models, threat assessments, probabilities, and other methods to distinguish between lawful and unlawful operations of unmanned aircraft; and (4) appropriate systems, training, intergovernmental processes, protocols, and procedures to mitigate risks and hazards posed by unlawful or harmful operations of unmanned aircraft systems. (c) Consultation The Secretary shall carry out the update in consultation with representatives of the aviation industry, Federal agencies that employ unmanned aircraft systems technology in the national airspace system, and the unmanned aircraft systems industry. 441. Cooperation related to certain counter-UAS technology In matters relating to the use of systems in the national airspace system intended to mitigate threats posed by errant or hostile unmanned aircraft system operations, the Secretary of Transportation shall consult with the Secretary of Defense to streamline deployment of such systems by drawing upon the expertise and experience of the Department of Defense in acquiring and operating such systems consistent with the safe and efficient operation of the national airspace system. V Air Service Improvements A Airline Customer Service Improvements 501. Reliable air service in American Samoa Section 40109(g) of title 49, United States Code, is amended— (1) in paragraph (2) by striking subparagraph (C) and inserting the following: (C) review the exemption at least every 30 days (or, in the case of an exemption that is necessary to provide and sustain air transportation in American Samoa between the islands of Tutuila and Manu’a, at least every 180 days) to ensure that the unusual circumstances that established the need for the exemption still exist.