This bill, titled the Ensuring Predictable and Reliable Water Deliveries Act of 2025 , aims to enforce Mexico's water delivery obligations to the United States under the 1944 Treaty relating to the Utilization of Waters of the Colorado and Tijuana Rivers and of the Rio Grande . It requires the Secretary of State to submit annual reports to Congress assessing Mexico's compliance, specifically whether it delivered a minimum of 350,000 acre-feet of water in the preceding year. The report must also evaluate Mexico's capacity to meet its five-year cycle delivery target of 1,750,000 acre-feet and identify Mexican economic sectors reliant on water from the U.S. or the six tributaries from which Mexico is obligated to deliver water. Should the Secretary determine that Mexico failed to deliver the minimum water amount, the President is mandated to deny all non-Treaty requests from Mexico, which are defined as emergency requests for special water delivery channels. Additionally, the President gains discretion to limit or terminate engagement with the Mexican government concerning the identified economic sectors, though engagement related to countering fentanyl and other synthetic drugs is explicitly exempted. An exception allows for granting non-Treaty requests if the water is certified for an ecological, environmental, or humanitarian emergency , is not for municipal or industrial use, and is deemed vital to U.S. national interests .