This bill, titled the "DPA Advanced Procurement Act of 2026," mandates that the Comptroller General of the United States undertake a comprehensive study. This study will assess the efficacy of current methods employed by federal agencies operating under the Defense Production Act of 1950 (DPA) for the procurement and stockpiling of long-lead items , which are components requiring extensive design and fabrication time. The Comptroller General must submit this study to relevant congressional committees within one year of the bill's enactment. The study's requirements include examining existing procurement and stockpiling practices, identifying avenues for enhanced inter-agency collaboration, and providing legislative recommendations, potentially including amendments to the DPA, to improve these processes. Additionally, the bill includes a minor technical correction to the short title of the Defense Production Act of 1950 itself.