The Regional Great Lakes Partnership Act of 2026 designates the Great Lakes Commission as an official Regional Great Lakes Partnership under federal law. The Great Lakes Commission, which includes representatives from eight states around the Great Lakes (Illinois, Indiana, Michigan, Minnesota, Wisconsin, New York, Ohio, and Pennsylvania), will receive formal recognition to coordinate regional efforts related to the Great Lakes. This bill amends existing federal law to clarify the Commission's status and expand its authority to work across all the Great Lakes rather than individual lakes. The legislation does not specify new funding amounts or implementation timelines beyond the designation itself. The bill aims to strengthen the Commission's role in addressing regional Great Lakes issues and gives it clearer federal standing to carry out its mission.