This bill grants the United States Section of the International Boundary and Water Commission (IBWC) new authority to accept funds from both federal and non-federal sources. These funds are specifically designated for activities related to studying, designing, constructing, operating, or maintaining wastewater treatment works , water conservation projects , and flood control works . Funds accepted by the Commission will be deposited into a dedicated Treasury account and remain available until expended for the authorized purposes. The bill imposes limitations, including a cap of $5,000,000 per fiscal year on reimbursement or credit to non-federal entities, and prohibits accepting funds from entities linked to a foreign country of concern . To ensure transparency, the Commission is required to submit an annual report to relevant Congressional committees, detailing the activities carried out and costs associated with the accepted funds.