; or (B) the aircraft has alternatively received design and production approval issued by the Federal Aviation Administration. (j) Exclusions The Administrator may exempt from the requirements of this section small unmanned aircraft systems that are not capable of navigating beyond the visual line of sight of the operator through advanced flight systems and technology, if the Administrator determines that such an exemption does not pose a risk to the safety of the national airspace system. . (b) Unmanned aircraft systems research facility The Center of Excellence for Unmanned Aircraft Systems shall establish an unmanned aircraft systems research facility to study appropriate safety standards for unmanned aircraft systems and to validate such standards, as directed by the Administrator of the Federal Aviation Administration, consistent with section 44805 of title 49, United States Code, as added by this section. (c) Table of contents The table of contents for chapter 448 of title 49, United States Code, as added by this Act, is further amended by adding at the end the following: 44805. Small unmanned aircraft safety standards. . 346. Public unmanned aircraft systems (a) In general Chapter 448 of title 49, United States Code, as added by this Act, is further amended by adding at the end the following: 44806. Public unmanned aircraft systems (a) Guidance The Secretary of Transportation shall issue guidance regarding the operation of a public unmanned aircraft system— (1) to streamline and expedite the process for the issuance of a certificate of authorization or a certificate of waiver; (2) to facilitate the capability of public agencies to develop and use test ranges, subject to operating restrictions required by the Federal Aviation Administration, to test and operate public unmanned aircraft systems