Applicablity

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 PDF icon 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 guidance documents:

• Is My Facility Required to Obtain the Industrial Stormwater General Permit? (4/15)

• Municipally-Owned and Operated Industrial Activities (4/15)

• Solid Waste Facilities - A guide to Minnesota’s Industrial Stormwater Permit (3/15)

• Guidance on the Industrial Stormwater Permit for Transportation Sectors (3/15)

• Guidance on the Industrial Stormwater Permit for the Air Transportation Sector (Sector S) (3/15)

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:"

• Industrial Stormwater Multi-Sector General Permit Frequently Asked Questions
• Industrial Stormwater Permit Guide