The International Joint Commission established the Indicators Implementation Task Force to assist in implementing integrative indicators of Great Lakes Basin ecosystem integrity. This report reviews activities of the Task Force, including its research of Great Lakes databases, technical reviews, and workshop proceedings. It explains the Task Force relationship with the State of the Lakes Ecosystem Conference (SOLEC), and compares the Task Force proposed suite of indicators with the SOLEC suite with regard to desired outcomes related to swimmability, fishability, drinkability, population health, economic viability, & others. The final section includes recommendations regarding data & information management, implementation & development of indicators, and long-term involvement by the Commission. The appendix reviews other initiatives using environmental indicators.