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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.

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Latest News

ECOS Testimony to U.S. Senate Environment and Public Works Committee, Alexandra Dapolito Dunn

The testimony can be accessed here.

Press Release by ECOS Regarding the U.S. EPA Release of EJSCREEN

The press release can be accessed here.

(June 10, 2015)

Statement by ECOS, ACWA, and ASWM Regarding the Clean Water Rule released May 27, 2015

The statement can be accessed here.

(May 28, 2015)

Joint ECOS-NCSL Letter to Senate on TSCA Reform

The letter can be accessed here.

(May 15, 2015)

ECOS Releases FY14 Annual Report

The Annual Report can be accessed here.

(May 15, 2015)

ECOS Comments on Development of an E-Enterprise for the Environment Portal

The comments can be accessed here.

(April 27, 2015)

ECOS Testimony to U.S. House of Representatives Committee on Appropriations Subcommittee on Interior, Environment and Related Agencies, Richard Pedersen (OR)

The testimony can be accessed here.

(March 18, 2015)


August 31, 2015 - September 2, 2015
2015 ECOS Fall Meeting
Newport, Rhode Island

April 11, 2016 - April 13, 2016
2016 ECOS Spring Meeting
Nashville, Tennessee


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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