Authorize the International Boundary and Water Commission to accept funds for activities relating to wastewater treatment and flood control works, and for other purposes.

This bill lets the U.S. side of the International Boundary and Water Commission take money from federal and non‑federal sources to plan, build, run, and maintain projects for wastewater treatment, water saving, and flood control along the U.S.–Mexico border. The money goes into a dedicated Treasury account and can be used until it’s all spent. Each year, the Commission must report what it did with the funds and how much it cost .

There are guardrails. The Commission can’t accept money from non‑federal groups that are tied to certain foreign countries of concern. And it can’t give more than $5 million total per year in credits or paybacks to non‑federal partners for funds accepted under this program .

• Who is affected: U.S. communities near the border that need cleaner water and better flood control; the Commission; federal, state, local, or private groups that want to help fund projects .
• What changes: The Commission can accept outside funds for these projects; yearly reporting is required; limits on foreign‑linked money; a $5 million yearly cap on reimbursements/credits to non‑federal partners .
• When: Reporting happens at the end of each fiscal year; funds remain available until used .