; 120 Stat. 443), as added by section 1102 of the Duncan Hunter National Defense Authorization Act for Fiscal Year 2009 ( Public Law 110–417 ; 122 Stat. 4616) and as most recently amended by section 1115 of the John S. McCain National Defense Authorization Act for Fiscal Year 2019 ( Public Law 115–232 ), is further amended by striking 2020 and inserting 2021 . 1105. Revision to certain overseas contingency operations-related inspector general authorities: hiring authorities Section 8L(d) of the Inspector General Act of 1978 ( 5 U.S.C. App. 8L(d) ) is amended— (1) in paragraph (2)(E), by inserting (but without regard to subsection (b)(2) of such section) after United States Code, ; (2) in paragraph (3), by amending subparagraph (C) to read as follows: (C) (i) An annuitant receiving an annuity under the Foreign Service Retirement and Disability System or the Foreign Service Pension System under chapter 8 of title I of the Foreign Service Act of 1980 ( 22 U.S.C. 4041 et seq.) who is reemployed under this subsection shall continue to receive such annuity and shall not be considered a participant for purposes of chapter 8 of title I of the Foreign Service Act of 1980 ( 22 U.S.C. 4041 et seq.) or an employee for purposes of subchapter III of chapter 83 or chapter 84 of title 5, United States Code. (ii) An annuitant described in clause (i) may elect in writing for the reemployment of such annuitant under this subsection to be subject to section 824 of the Foreign Service Act of 1980 ( 22 U.S.C. 4064 ). A reemployed annuitant shall make an election under this clause not later than 90 days after the date of the reemployment of such annuitant.