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The Environmental Council of the States (ECOS) is the national non-profit, non-partisan association of state and territorial environmental agency leaders. The purpose of ECOS is 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 here.


Latest News

ECOS Testifies on EPA's FY15 Budget

A copy of the written testimony is available here.

(April 10, 2014)

States Weigh in on Chemical Storage Tank Bill

A copy of the joint ECOS, ACWA, ASDWA, ASTHO, ASTSWMO letter is available here.

(March 7, 2014)

Alexandra Dapolito Dunn Selected as ECOS Executive Director and General Counsel

Press release here.

(February 19, 2014)


March 31, 2014 - April 2, 2014
2014 ECOS Spring Meeting
Sausalito, California

September 15, 2014 - September 17, 2014
2014 ECOS Annual Meeting
Santa Fe, New Mexico


View ECOS Calendar - click here.

Copies of ECOS' regularly-published, topic-specific Green Reports can be accessed here.


The Environmental Research Institute of the States is a 501(c)3 organization that focuses on educational and research issues. Click on the link below to find out more.


A state-led coalition of state and federal regulators, industry, and stakeholders working together to achieve regulatory acceptance of environmental technologies.

Exchange Network

The Exchange Network is a partnership among States, Territories, Tribes, and the U.S. Environmental Protection Agency that is improving and expanding the exchange of environmental information. Visit to learn more.

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