; (B) is certificated under part 145 of title 14, Code of Federal Regulations; and (C) performs heavy maintenance work on aircraft (including on-wing aircraft engines) operated under part 121 of title 14, Code of Federal Regulations. . (2) Technical amendment Section 44733(a)(3) of title 49, United States Code, is amended by striking covered part 145 repair stations and inserting part 145 repair stations . (c) Conforming amendments The analysis for chapter 447 of title 49, United States Code, is amended by striking the item relating to section 44733 and inserting the following: 44733. Oversight of repair stations located outside the United States. . 3. Alcohol and drug testing and background checks (a) In general Beginning on the date that is 2 years after the date of enactment of this Act, the Administrator of the Federal Aviation Administration (in this Act referred to as the Administrator ) may not approve or authorize international travel for any employee of the Federal Aviation Administration until a final rule carrying out the requirements of subsection (b) of section 2112 of the FAA Extension, Safety, and Security Act of 2016 ( 49 U.S.C. 44733 note) has been published in the Federal Register. (b) Rulemaking on assessment requirement With respect to any employee not covered under the requirements of section 1554.101 of title 49, Code of Federal Regulations, the Administrator shall initiate a rulemaking that requires a covered repair station to confirm that any such employee has successfully completed an assessment commensurate with a security threat assessment described in subpart C of part 1540 of such title. (c) Exceptions The prohibition in subsection (a) shall not apply to international travel that is determined by the Administrator on an individual by individual basis to be— (1) exclusively for the purpose of conducting a safety inspection; (2) directly related to aviation safety standards, certification, and oversight