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Existing user? Log in here to obtain permits.

First-time users must request a personal identification number (PIN) to set up your account. Send us an e-mail with your company name, company license number and contact name and phone number to to request a PIN.

Instruction and fees

Mail a permit application

Permits can also be requested by completing and mailing a high pressure piping permit application.

Who needs a permit?

Contractors who install piping systems regulated by Minnesota's high pressure piping statutes and rules must be licensed to do this work and apply for permits prior to the start of construction. High pressure piping systems that require licensing and permits include:

  • steam-piping system designed to operate at more than 15psi, 

  • other heating media piping systems that operate at more than 30 psi and 250 degrees, 

  • ammonia refrigeration systems, and

  • bio-process piping systems.

Minneapolis and St. Paul have municipal agreements with us to issue permits and perform inspections in each city.


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