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The Environmental Council of the States (ECOS)

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Policy Documents

Resolution 98-9: U.S. EPA Enforcement in Delegated States

April 1, 2026

Compliance & EnforcementResolutions

Memorandum of Agreement on Public and Environmental Health Initiatives between U.S. EPA, ECOS, and ASTHO

March 31, 2026

Agreements

ECOS House Testimony on the Potential of America’s Brownfield Sites

March 4, 2026

Land & WasteTestimonies

Artificial Intelligence & State Environmental Protection Agencies: Opportunities, Risks, Actions

February 26, 2026

Environmental DataPublications

ECOS Letter to U.S. EPA on Updating the Water Quality Certification Regulations

February 17, 2026

WaterLetters

ECOS Letter to U.S. EPA and Army Corps on Proposed Updated Definition of WOTUS

January 2, 2026

WaterLetters

ECOS Letter to U.S. EPA and Army Corps Requesting WOTUS Comment Period Extension

December 4, 2025

WaterLetters

Resolution 25-2: The Importance of Science in Advancing Cooperative Federalism

November 10, 2025

Resolutions

Letter from ECOS President Chris Wells

October 1, 2025

Letters

Resolution 04-4: Promotion of Pollution Prevention and Sustainability

September 5, 2025

Land & WasteSustainability & Materials ManagementResolutions

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The Environmental Council of the States
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Email: ecos@ecos.org
Tel 202-266-4920
Fax 202-266-4937

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