To waive certain requirements under section 306018 of title 54, United States Code, with respect to undertakings to upgrade public water systems and treatment works.

HR 6353 waives historic preservation review requirements (specifically Section 106 of the National Historic Preservation Act) for projects primarily upgrading public water systems or treatment works. It directly affects entities like water utilities or local governments undertaking such infrastructure projects. To qualify, the entity must request the waiver from the responsible federal agency overseeing the project. This streamlines approval for water system upgrades by removing a standard historic preservation review process, without changing the core water system work itself. The waiver applies only to projects with "primary purpose" of structural rehabilitation or upgrade.