Multi-Sector General Permit (MSGP)

Resources relating to the MSGP and where to go if you need additional information.

EPA Multi-Sector General Permit Page

Additional information about the MSGP along with the full version of the permit, can be found on the EPA MSGP webpage.

Disclaimer: EPA is the permitting authority for the MSGP. NHDES does not have any regulatory authority over the MSGP and solely provides support for permittees.

EPA reissued the MSGP on January 15, 2021, with an effective date of March 1, 2021. It requires, among other things, the development and implementation of a SWPPP, employee training, record keeping, discharge monitoring and annual reports to EPA. The MSGP, including the NOI and guidance materials on the permit requirements can be found on the EPA Stormwater Discharge from Industrial Activities webpage. The MSGP will expire on February 28, 2026, and will be administratively extended for current permittees until it is reissued by EPA.

This permit covers stormwater discharges from the following 29 different industry sectors:

     A. Timber Products
     B. Paper and Allied Products
     C. Chemical and Allied Products Manufacturing, and Refining
     D. Asphalt Paving and Roofing Materials and Lubricant Manufacturing
     E. Glass, Clay, Cement, Concrete, and Gypsum Products
     F. Primary Metal
     G. Metal Mining
     H. Coal Mines and Coal Mining-Related Facilities
     I. Oil and Gas Extraction
     J. Non-Metallic Mineral Mining and Dressing
     K. Hazardous Waste Treatment, Storage, or Disposal Facilities
     L. Landfills, Land Application Sites, and Open Dumps
     M. Automobile Salvage Yards
     N. Scrap Recycling and Waste Recycling Facilities
     O. Steam Electric Generating Facilities
     P. Land Transportation and Warehousing
     Q. Water Transportation
     R. Ship and Boat Building and Repair Yards
     S. Air Transportation
     T. Treatment Works
     U. Food and Kindred Products
     V. Textile Mills, Apparel, and Other Fabric Products
     W. Furniture and Fixtures
     X. Printing and Publishing
     Y. Rubber, Miscellaneous Plastic Products, and Miscellaneous Manufacturing Industries
     Z. Leather Tanning and Finishing
     AA. Fabricated Metal Products
     AB. Transportation Equipment, Industrial or Commercial Machinery Facilities
     AC. Electronic and Electrical Equipment and Components, Photographic and Optical Goods
     AD. Stormwater Discharges Designated by the Director as Requiring Permits

MSGP Definitions, Abbreviations and acronyms