This bill, titled the "Securing Infrastructure from Adversaries Act of 2026," aims to restrict the use of certain foreign-made LiDAR technology within the Department of Transportation's operations and funded projects. Specifically, it prohibits the Secretary of Transportation from directly procuring or obtaining LiDAR technology from designated "covered foreign countries" or "covered LiDAR companies." Furthermore, the Secretary is barred from entering into, extending, or renewing contracts with any entity that uses or procures such prohibited LiDAR technology in the performance of the contract. The legislation also ensures that federal loan or grant funds provided by the Secretary cannot be obligated or expended to procure, obtain, or use any of the specified foreign LiDAR technology. While the bill includes a waiver provision allowing the Secretary to bypass the prohibition on a case-by-case basis if certified to be in the national interest, it explicitly exempts activities related to vehicle safety testing, research, evaluation, analysis, or training. These prohibitions are set to apply to obligations, expenditures, and contracts entered into on or after June 30, 2026 .