Amends the Federal Water Pollution Control Act to reauthorize and fund the Great Lakes Restoration Initiative by adding a new subclause that provides $500,000,000 per year for each fiscal year 2027 through 2031. It also makes small wording edits to two existing subclauses in the same clause.

The change would authorize $2.5 billion in funding authority over five years for projects to restore and protect the Great Lakes; actual spending still requires future appropriations and program administration by EPA and partner entities.