The Department of Defense, specifically the Department of the Air Force, is seeking proposals for the Center for Aircraft Structural Life Extension (CAStLE) Indefinite-Delivery Indefinite-Quantity (IDIQ) Contract. This contract aims to support a dual mission focused on researching and developing technologies to address material degradation in aircraft structures while also educating and training future leaders in the science and technology community. The CAStLE plays a crucial role in ensuring the safe and economical sustainment of Department of Defense systems and structures, integrating relevant research into the educational framework at the United States Air Force Academy. Interested parties can reach out to Dominic Carusone at dominic.carusone@us.af.mil or 719-208-5057, or Heather Bunnell at heather.bunnell@us.af.mil or 719-330-9315 for further details.