The Great Lakes–Saint Lawrence River Basin Sustainable Water Resources Agreement is a good-faith agreement among the Governors of the U.S. states of Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania, and Wisconsin, and the Premiers of the Canadian provinces of Ontario and Quebec.

[2] The agreement provides a framework for each Great Lakes state and province to enact programs and laws protecting the Basin.

The states are meeting the agreement's commitments through the companion Great Lakes Compact.

In order to put the agreement into law in Ontario and Quebec, the provinces amended their statutes and regulations.

Ontario's Implementing Regulations were adopted on January 1, 2015, allowing the Agreement to begin coming fully into force as of March 8, 2015.