The main purpose of this legislation, known as the Vessel Tracking for Sanctions Enforcement Act of 2025, is to establish a pilot program that uses advanced data analysis techniques to identify ships that may be trying to evade U.S. sanctions and export controls. The goal is to enhance the ability of U.S. authorities to monitor and intercept vessels that are suspected of illegal activities related to international trade. Key provisions of the law include the requirement for the Secretary of Homeland Security to set up a pilot program within 18 months of the law's enactment.