; and (2) whether a certificate under section 44703 or section 44704 of this title, or a certificate of waiver or certificate of authorization, is required for the operation of unmanned aircraft systems identified under paragraph (1) of this subsection. (c) Requirements for safe operation If the Secretary determines under this section that certain unmanned aircraft systems may operate safely in the national airspace system, the Secretary shall establish requirements for the safe operation of such aircraft systems in the national airspace system, including operation related to research, development, and testing of proprietary systems. (d) Sunset The authority under this section for the Secretary to determine if certain unmanned aircraft systems may operate safely in the national airspace system terminates effective September 30, 2023. . (b) Technical and conforming amendments (1) Table of contents The table of contents for chapter 448, as added by this Act, is further amended by adding at the end the following: 44807. Special authority for certain unmanned aircraft systems. . (2) Special rules for certain unmanned aircraft systems Section 333 of the FAA Modernization and Reform Act of 2012 ( 49 U.S.C. 40101 note) and the item relating to that section in the table of contents under section 1(b) of that Act (126 Stat. 13) are repealed. 348. Carriage of property by small unmanned aircraft systems for compensation or hire (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: 44808. Carriage of property by small unmanned aircraft systems for compensation or hire (a) In general Not later than 1 year after the date of enactment of the FAA Reauthorization Act of 2018, the Administrator of the Federal Aviation Administration shall update existing regulations to authorize the carriage of property by operators of small unmanned aircraft systems for compensation or hire within the United States. (b) Contents Any rulemaking conducted under