To 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 allows the U.S. section of the International Boundary and Water Commission (IBWC) to accept funding from federal or non-federal sources - including grants - to support wastewater treatment and flood control projects along the U.S.-Mexico border. It specifies that funds received must be deposited into a designated Treasury account and used solely for studying, building, operating, and maintaining these specific infrastructure works. The bill directly affects the IBWC’s ability to secure external funding for border water management, benefiting communities and ecosystems in border regions reliant on these systems. It does not change existing policies but streamlines the Commission’s process for managing such projects.