The Municipal Stormwater Regulation Program was developed in response to the U. S. Environmental Protection Agency’s (USEPA) Phase II rules published in December 1999.  The Department issued the final NJPDES stormwater rules on February 2, 2004 and four NJPDES general permits authorizing stormwater discharges from Tier A and Tier B municipalities as well as Public Complexes, and Highway Agencies that discharge stormwater from municipal separate storm sewer systems (MS4s) and have subsequently been renewed on a routine basis.

The Tier A permit authorizes stormwater discharges from most municipalities in New Jersey. Public Complexes include certain large public colleges, prisons, hospital complexes, and military bases.  Highway Agencies include county, state, interstate, or federal government agencies that operate highways and other thoroughfares.

If you have questions regarding the MS4 General Permits, you may email your case manager or MS4 program at stormwatermanager@njdepwptest.net, or call the Bureau’s general line at 609-633-7021.