The American Drone Manufacturing Dominance Act of 2026 seeks to reduce reliance on unmanned aircraft systems (UAS) from certain foreign countries and bolster domestic manufacturing. Beginning in fiscal year 2027, law enforcement agencies receiving specific Department of Justice grants must certify they will not acquire new UAS from covered foreign countries and will discontinue using existing foreign-made drones by January 1, 2031. Non-compliant agencies face penalties, including ineligibility for future grants and repayment of awarded funds. To facilitate this transition, the bill authorizes the appropriation of $1.5 billion from Section 301 tariff revenues . A portion of these funds will establish a Department of Justice (DOJ) program to buy back foreign-manufactured UAS from law enforcement agencies, prioritizing those used in public safety. Additionally, the DOJ will award grants to agencies for procuring secure UAS not sourced from covered foreign countries, with preference given to systems manufactured in the United States or by allied nations. The largest share of the tariff revenues, $1.2 billion, is allocated to the Department of Commerce for a competitive grant program. This program will support private entities in constructing, expanding, or modernizing facilities in the United States for manufacturing UAS and their components. Eligibility requires that the manufactured systems be readily adaptable for use by the Department of Defense, emphasizing modular design, secure communications, and suitability for various defense missions.