Interstate Environemntal Commission



Established in 1936, the Interstate Environmental Commission is a tri-state water and air pollution control agency for New York, New Jersey, and Connecticut.

The mission of the IEC is to protect and enhance environmental quality through cooperation, regulation, and communication between government officials and citizens in the tri-state region.

The Interstate Environmental Commission is the oldest regulatory and enforcement agency in the region, and clearly, year in and year out, the Commission’s track record of accomplishments benefitting New York, New Jersey, and Connecticut speaks for itself.



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Things We Do at IEC...


IEC EPA finalizes lower Passaic River Cleanup plan. Learn more.

Hypoxia in Far Western Long Island Sound and Upper
East River - 2015


Microbead-Free Waters Act of 2015 was signed by President Obama in December 28 2015, calling for a ban on rinse off cosmetic products that contain microbeads. Learn More

The Long Island Sound Study has released an updated Comprehensive Conservation and Management Plan (CCMP). Interactive guide to the CCMP 2015

NYSDEC Sewage Pollution Right to Know: Sign up for NY-Alert to receive notifications of sewage discharges.

Please check out the links to IEC's historical reports dating back to the early 1930s in our Archive.

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