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Title: Mechanical Contractor Bond
Alternate Title: Mechanical Contractor Bond
Description: Minn. Stat. § 326B.197 requires anyone who installs gas piping, heating, ventilation, cooling, air conditioning, fuel burning or refrigeration (G/HVACR) equipment to post a $25,000 bond and file with the Minnesota Department of Labor and Industry (DLI), Construction Codes and Licensing Division (CCLD).
Subject: Cooling, Fuel Burning, Refrigeration Equipment
Creation Date: 9/15/2008 10:39:20 AM
Modification Date: 2/13/2024 4:16:57 PM
Agency Name: Labor and Industry (DLI), Minnesota Department of
Agency URL:
Agency Description: The agency oversees the state's programs for apprenticeship, construction codes and licensing, dual-training (PIPELINE Program), occupational safety and health, wage and hour standards, workers' compensation and youth skills training programs. The Office of Combative Sports, within the Department of Labor & Industry, ensures Minnesota's combative sporting events are conducted in a manner that minimizes injuries and ensures fair competition.
Agency Phone: 651-284-5005
Agency Fax: Agency URL:
Agency Address:
443 Lafayette Road N.

St. Paul
MN 55155

Division Name: Construction Codes and Licensing Division (CCLD)
Division URL:
Division Description:
Division Phone: Division Fax: Division URL:
Unit Name: Licensing and Certification Services
Unit URL:
Unit Description:
Unit Phone: 651-284-5034
Unit Fax: 651-284-5743
Contact person(s): Unit URL:
Audience: Application URL:
Renewal URL:
Versa URL:

There is no state license requirement for mechanical contractors, they are required to file a $25,000 mechanical contractor bond with DLI in order to contract to perform gas, heating, ventilation, cooling, air conditioning, fuel burning or refrigeration work in Minnesota. The bond must be on a form approved by DLI and written by a surety company licensed to do business in Minnesota.

In addition to filing a bond, mechanical contractors are subject to local licensing requirements.

Review Mechanical Contractor Bond Requirements
Code books

  • Minnesota State Mechanical Code (Minn. Rules 1346)

  • International Mechanical Code

  • International Fuel Gas Code

  • Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations (NFPA 96)

  • Minnesota State Mechanical, Fuel Gas and Plumbing Code

The Minnesota State Building Code is the standard for construction statewide, however, the code is enforced Minnesota State Building Code Enforcement Areas

About the Minnesota Mechanical Code
This chapter of the state building code governs the installation and maintenance of heating, ventilating, cooling, and refrigeration systems or so-called "HVAC" systems. Examples of subjects regulated include, furnaces, ductwork, hot water heat, commercial kitchen ventilation, gas piping, exhaust ventilation, etc. The Minnesota Mechanical Code consists of the 2012 International Mechanical & International Fuel Gas Codes and the amendments to these documents located in Minn. Rules 1346

Contact DLI at or 651-284-5034.

Rules: 1346

Statutes: 326B.197


Mechanical Bond Packet


New Mechanical Bond - $100

Renew Mechanical Bond (not expired) - $100

Renewal Mechanical Bond (expired) - $150

Period of Issuance:

Bonds are in effect for one year from the effective date and renewed annually with a continuation certificate.

Length of Determination:
Other Info:
Activity: License Detail URL:

Mechanical Contractor Bond Requirements

Plumbing and Mechanical Contractors

License and Registration Lookup

Minnesota Department of Labor & Industry (DLI)

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