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.



 Interactive: Click to Explore

Things We Do at IEC...


IEC Hypoxia in Far Western Long Island Sound and Upper East River - 2014


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


Recovering from Sandy: Informative Links
Please visit for current fish consumption advisories.

Funding and Technical Assistance Programs
Federal Emergency Management Agency (FEMA) and NYS Office of Emergency Managment (OEM):

Access our 2012 Annual Report here.

Check in the News for data and other information...

Copyright 2015 Interstate Environmental Commission
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