This page provides information to help facilities determine if they need industrial stormwater permit coverage. Any facility that is engaged in a Narrative Activity or a Primary SIC Code, as listed within Appendix D of the Multi-Sector General Permit, or within the table below, needs to apply for permit coverage or certify for No Exposure.
Have a specific question or situation regarding applicability? Check out these resources first:
- Is My Facility Required to Obtain the Industrial Stormwater General Permit?
- Municipally-Owned and Operated Industrial Activities
- Solid Waste Facilities - A guide to Minnesota’s Industrial Stormwater Permit
- Guidance on the Industrial Stormwater Permit for Transportation Sectors
- Guidance on the Industrial Stormwater Permit for the Air Transportation Sector (Sector S)
How do I look up a SIC codes? What if I have a NAICS code?
- Find your SIC Code in the 1987 version SIC manual.
- If you have a North American Industrial Classification System (NAICS) code, enter it to find the applicable SIC code: HTML icon 1997 NAICS and 1987 SIC Correspondence Tables
- Convert NAICS code to a corresponding SIC code
'Guidance materials and resources: