- Colorado
Cooperative Federalism
Letter from Newly Elected ECOS President Becky Keogh
PFAS
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.
ECOS Results
ECOS Results illustrates the outcomes of members’ efforts to improve public health and the environment.
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.
E-Matrix
E-MATRIX provides easy access to information on state best practices and technologies that reduce methane and other air emissions at points along oil and gas systems.
Our Members
We are the national non-profit, non-partisan association of state and territorial environmental agency leaders. Learn more.
- Louisiana
Louisiana Launches New and Improved Water Data Portal
- Colorado
Colorado Recognizes Businesses and Organizations Going Beyond Compliance
- Delaware
Delaware Holds Public Hearing on Proposed ACE Rule
- Rhode Island
Rhode Island’s Coit Recognized for Public Service
- Rhode Island
Rhode Island Tackles Plastics Pollution
Our Affiliates
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.
The Interstate Technology and Regulatory Council (ITRC) is a state-led coalition of state and federal regulators, industry, and stakeholders working together to achieve regulatory acceptance of environmental technologies.
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.
E-Enterprise for the Environment (E-Enterprise) is a transformative 21st-century strategy to modernize how government agencies deliver environmental protection.
