- South Carolina
Photo of Green grass field near a mountain during daytime. Clouds are rolling in. by Intricate Explorer on Unsplash
The Environmental Council of the States (ECOS) works to improve the capability of state environmental agencies and their leaders to protect and improve human health and the environment of the United States of America. Learn more about us.
Our Focus
ECOS works in a variety of media and policy areas to help states protect public health and the environment. Learn more.
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ECOS helps facilitate environmental justice and Title VI related discussions amongst state and federal partners
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ECOS is collecting funding information and resources about the American Rescue Plan Act, the Bipartisan Infrastructure Law, and the Inflation Reduction Act.
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ECOS is helping states communicate and coordinate with EPA, other federal agencies, and each other about developments and best practices pertaining to PFAS

Sustainable Materials Management Project Inventory
We are highlighting certain policies, incentive programs, or unique projects with information for other states on how they were implemented, resources needed, and results to date.

State Business Process Improvement Project Inventory
This inventory aims to further facilitate coordination and knowledge sharing amongst states as they improve the way they operate and administer their environmental programs.
Our Members
We are the national non-profit, non-partisan association of state and territorial environmental agency leaders. Learn more.
- Illinois
- North Dakota
- Colorado
- Wyoming
- District of Columbia