; and (2) for each such instance, provides an explanation of the reasons the Navy used a Government dock rather than a private dock. D Air Force Programs 131. Limitation on retirement of F–15 aircraft and modification of related reporting requirement (a) Limitation Section 9062 of title 10, United States Code, is amended by adding at the end the following new subsection: (l) (1) During the period beginning on the date of the enactment of the National Defense Authorization Act for Fiscal Year 2024 and ending on September 30, 2029, the Secretary of the Air Force may not— (A) retire more than 68 F–15E aircraft; (B) reduce funding for unit personnel or weapon system sustainment activities for retained F–15E aircraft in a manner that presumes future congressional authority to divest such aircraft; or (C) keep an F–15E aircraft (other than an aircraft identified for retirement under subparagraph (A)) in a status considered excess to the requirements of the possessing command and awaiting disposition instructions (commonly referred to as XJ status). (2) The prohibition under paragraph (1) shall not apply to individual F–15E aircraft that the Secretary of the Air Force determines, on a case-by-case basis, to be no longer mission capable and uneconomical to repair because of aircraft accidents, mishaps, or excessive material degradation and non-airworthiness status of certain aircraft. . (b) Modification to report required before divestment Section 150 of the James M. Inhofe National Defense Authorization Act for Fiscal Year 2023 ( Public Law 117–263 ; 136 Stat. 2456) is amended— (1) in subsection (b)(1)— (A) in subparagraph (C)(ii), by striking and at the end; (B) in subparagraph (D), by striking the period at the end and inserting ; and ; and (C) by adding at the end the following new subparagraph: (E) for each F–15E aircraft that the Secretary plans to divest, a description of— (i) each upgrade and modification made to such aircraft, including— (I) the date of the upgrade or modification