; (4) evaluate the current and historical unobligated and unexpended balances of the Franchise Fund; and (5) assess the degree to which FAA policies and controls associated with the Franchise Fund conform with generally accepted accounting principles, Federal policies, best practices, or other guidance relating to revolving funds. (c) Report Not later than 180 days after the date of initiation of the audit described in subsection (a), the inspector general shall submit to the appropriate committees of Congress a report on the results of the audit, including findings and recommendations. 522. Automatic dependent surveillance-broadcast (a) Repeal Subsection (b) of section 211 of the FAA Modernization and Reform Act of 2012 ( 49 U.S.C. 40101 note) is repealed. (b) Requirement The Administrator shall ensure that any regulation issued pursuant to such subsection has no force or effect. 523. Contract weather observers Section 2306(b) of the FAA Extension, Safety, and Security Act of 2016 ( Public Law 114–190 ; 130 Stat. 641) is amended by striking 2018 and inserting 2023 . 524. Regions and centers (a) In general Section 44507 of title 49, United States Code, is amended— (1) by striking the section heading and inserting Regions and centers ; (2) by striking The Civil Aeromedical Institute and inserting the following: (a) Civil Aeromedical Institute The Civil Aeromedical Institute