This guide links to tools and resources developed by the Great Lakes Regional Pollution Prevention Roundtable (GLRPPR), a regional pollution prevention (P2) information center funded through the U.S. Environmental Protection Agency's Pollution Prevention Information Network (PPIN) grant program from 1995-2018. GLRPPR was one of eight regional P2 information centers that comprised the Pollution Prevention Resource Exchange (P2Rx) network.

During its tenure, GLRPPR advanced pollution prevention (P2) information exchange by developing and promoting information resources and training for and facilitating networking among pollution prevention technical assistance providers in the Great Lakes region and worked with the other centers in the P2Rx network to amplify pollution prevention tools and training to technical assistance providers throughout the United States.