This legislation aims to prevent the premature divestment of A-10 aircraft by the Department of Defense, ensuring their continued operational viability through fiscal year 2033. It prohibits the Air Force from reducing the total A-10 inventory below levels necessary for operational employment, pilot production, and testing. Specifically, the bill mandates maintaining at least 126 A-10 aircraft and requires the fleet to include a minimum number of active units primarily focused on critical missions like close air support, forward air control, and combat search and rescue. A key provision establishes a strict condition for any future divestment: the Secretary of Defense must certify that a fully capable replacement for the A-10 fleet has achieved full operational capability. This certification requires detailed evidence of the replacement's operational readiness, qualified personnel, and its ability to perform all A-10 missions, including armed overwatch and survivability. Crucially, it demands written concurrence from the Secretaries of the Army and Navy (for the Marine Corps), and the Commander of U.S. Special Operations Command, ensuring inter-service agreement on the replacement's adequacy. The bill further mandates the preservation of all A-10 aircraft retired from fiscal year 2027 onwards in a recoverable condition, suitable for future operational use, training, or potential foreign transfer. It prohibits cannibalization of these preserved aircraft and restricts their processing at storage facilities until a comprehensive sustainment roadmap is submitted. The legislation also requires the Air Force to maintain sufficient training, maintenance, and logistics capacity to keep the A-10 fleet operationally viable through fiscal year 2033, including specific annual pilot and instructor qualification targets. To support these requirements, the bill places limitations on reducing A-10 training functions at Davis-Monthan Air Force Base and the weapons instructor course at Nellis Air Force Base. It emphasizes maintaining existing infrastructure for A-10 support and requires a formal training unit for pilots. The Secretary of the Air Force must submit a detailed roadmap for A-10 fleet sustainment, including a contingency plan through fiscal year 2037, and provide annual updates to Congress. Beyond operational requirements, the legislation directs the reconstitution and operation of an A-10 demonstration team to support public outreach, recruiting, and heritage events, particularly for the 250th anniversary of the United States. It also mandates a plan for competitive experimentation with autonomous and nontraditional capabilities relevant to the A-10 mission set, encouraging private sector involvement. Finally, the bill requires reports on the A-10's combat legacy, lessons learned, and potential modernization options, as well as a briefing on the feasibility of foreign transfers for surplus A-10 aircraft to allies or partners.