License Minnesota

High Pressure Pipefitter (HPP) Journeyman

Minnesota Department of Labor and Industry (DLI)

Agency contact information:

Labor and Industry (DLI), Minnesota Department of
443 Lafayette Road N.
St. Paul, MN 55155
(651) 284-5005 | (800) 342-5354
Construction Codes and Licensing Division (CCLD)
Licensing and Certification Services
(651) 284-5031 | (651) 297-4198
Contact Info:


Minnesota Department of Labor & Industry

Personal high-pressure piping licensing

High-pressure piping

Lookup and Locate: Online database to search for boilers and pressure vessels and print registration certificates

Check the status of a license/certificate/registration/bond

Online Payment Center

The Minnesota Department of Labor and Industry (DLI) oversees the state's apprenticeship, construction codes and licensing, occupational safety and health, wage and hour standards and workers' compensation programs and the Office of Combative Sports.


Minn. Stats. 326.46


MINNESOTA RULES 5230.0010 - 5230.1270


HPP Journeyman and Contractor Exam Application Packet

HPP Business License Application Forms and Packets

HPP Business Renewal Packet 

Application packets are available on the MN Dept. of Labor & Industry (DLI) website, High-pressure piping section at Personal high-pressure piping licensing.


48 months verified pipefitting work experience.

Work experience verification forms.


New license, certification and registration fees effective July 1, 2015

Period of Issuance:


Length of Determination Process:

One week.

Other Pertinent Information:

Contractor Applications must be made at least 15 days before exam.

Journeyman applications must be made at least 15 days before exam.

A permit is required for construction or installation of all High Pressure Piping (Steam, Hot Water, or Ammonia) mandated in Minn. Stat. § 326.46-.50.

Contact the Department of Labor and Industry for permit filing fee and inspection fee schedules.