on which the plan is so submitted. (c) Exception for E–7 procurement If the Secretary of the Air Force procures enough E–7 Wedgetail aircraft to accomplish the required mission load, the prohibition under subsection (a) shall not apply to actions taken to reduce the total aircraft inventory of E–3 aircraft to below 16 after the date on which such E–7 Wedgetail aircraft are delivered. 143. Prohibition on availability of funds for termination of production lines for the HH–60W aircraft None of the funds authorized to be appropriated by this Act or otherwise made available for fiscal year 2024 for the Air Force may be obligated or expended to terminate the operations of, or to prepare to terminate the operations of, a production line for HH–60W Combat Rescue Helicopters. 144. Limitation on retirement of F–16C/D aircraft (a) Limitation Beginning on the date of the enactment of this Act and except as provided in subsection (b), the Secretary of the Air Force may not retire, prepare to retire, or place in storage or on backup aircraft inventory status any F–16C/D aircraft until a period of 180 days has elapsed following the date on which the Secretary submits the report required under section 148. (b) Exception The limitation under subsection (a) shall not apply to individual F–16C/D 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. (c) Information to Congress For each F–16C/D aircraft that the Secretary of the Air Force proposes to retire in a fiscal year, the Secretary shall include, in the materials submitted by the Secretary in support of the budget of the President for that fiscal year (as submitted to Congress under section 1105(a) of title 31, United States Code), a description of— (1) each upgrade and modification made to such aircraft, including— (A) the date of the upgrade or modification