Interstate Environmental Commission

Data Center Description
The Interstate Environmental Commission is a joint agency of the States of New
York, New Jersey, and Connecticut. The IEC was established in 1936 under a
Compact between New York and New Jersey and approved by Congress. The State of
Connecticut joined the Commission in 1941.

The mandates of the Commission are governed by the Tri-State Compact, Statutes,
and the IEC's Water Quality Regulations. Its responsibilities and programs
include activities in areas such as air pollution, resource recovery facilities
and toxics; however, the IEC's continuing emphasis is on water quality, an area
in which the Commission is a regulatory and enforcement agency.

IEC's area of jurisdiction runs west from Port Jefferson and New Haven on Long
Island Sound, from Bear Mountain on the Hudson River down to Sandy Hook, New
Jersey (including Upper and Lower New York Bays, Newark Bay, Arthur Kill and
Kill Van Kull), the Atlantic Ocean out to Fire Island Inlet on the southern
shore of Long Island, and the waters abutting all five boroughs of New York


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