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Municipal Stormwater Regulation Program

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 final 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 sewers systems (MS4s).  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.

The general permits address stormwater quality issues related to new development, redevelopment and existing development by requiring regulated entities to implement Statewide Basic Requirements (SBRs).

Each MS4 General Permit and related documents including specifications for MSRP Annual Report and Certification can be found under the specific permit category below.

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If you have any specific questions on the renewal process or the renewal of the MS4 General Permit(s), please contact your case manager or you may email, stormwatermanager@dep.nj.gov. The Department appreciates your continued cooperation in this matter.

General Program Documents

Document
Type PDF Format
arrow Tier Assignment List (pdf, 108Kb)
Guidance
pdf
arrow Tier A and B Assignment Map
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arrow Stormwater Program Coordinator Information Update Sheet(pdf, 28Kb)
Form
pdf

Municipal Stormwater Mapping and Inventory Assistance
The Department’s mapping and inventory assistance tools are now available. Please visit the following webpage for more information.

NJPDES Tier A MS4 Draft Permit Renewal - Public Hearing Information
*NEW The Public Hearing for this Draft Tier A Permit Renewal is scheduled for September 20, 2022. Please review the following document for additional information and to register for the Public Hearing. Click here

Municipal MS4 Permit Renewal August 2021 Presentation
The current municipal MS4 permits became effective 1/1/18 and will expire 12/31/22. Please review the following document for information on the renewal process. Click here for the presentation slides.

Municipal MS4 Permit Renewal March 2022 Presentation
*NEW - The current municipal MS4 permits became effective 1/1/18 and will expire 12/31/22. Please review the following document for information on the renewal process. Click here for the presentation slides.

MS4 Tier B Reassignment Outreach Session August 2022
*NEW - Please review the following document for information on the reassignment process. Click here for the presentation slides.

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Last Update: May 9, 2023

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