; and (2) submit to the appropriate committees of Congress a report on the study, including the Comptroller General’s findings, conclusions, and recommendations. (b) Contents The study under subsection (a) shall review the following: (1) The current state of the law with respect to Federal authority over airspace in the United States and the operations of aircraft in that airspace. (2) The current state of the law with respect to state and local authority over airspace in the United States and the operations of aircraft in that airspace; (3) Potential gaps between authorities under paragraphs (1) and (2), particularly with respect to unmanned aircraft systems operations at low altitudes; (4) The effectiveness of the Federal Government’s efforts to resolve differences between different stakeholders on the issue. (5) Potential ways to structure the roles and responsibilities between the Federal Government and State and local governments to ensure the highest level of safety for all aviation operations and in consideration of State and local interests on issues such as nuisance, voyeurism, privacy, trespass, harassment, reckless endangerment, wrongful death, personal injury, property damage, or other illegal acts arising from the use of unmanned aircraft systems. 2152. Spectrum (a) In general Small unmanned aircraft systems may use spectrum for wireless control link, tracking, diagnostics, payload communication, and collaborative-collision avoidance, such as vehicle-to-vehicle communication, and other uses, consistent with the Communications Act of 1934 ( 47 U.S.C. 151 et seq.), Federal Communications Commission rules, and the safety-of-life determination made by the Federal Aviation Administration, and through voluntary commercial arrangements with service providers, whether they are operating within a UTM system under section 2208 of the FAA Extension Safety and Security Act of 2016 ( Public Law 114–190