Heating, ventilating and air conditioning – Minnesota Mechanical Code – Minnesota Department of Labor and Industry #hvac #online #classes


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Heating, ventilating and air conditioning – Minnesota Mechanical Code

This chapter of the state building code governs the installation and maintenance of heating, ventilating, cooling, and refrigeration 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 2006 International Mechanical International Fuel Gas Codes and the amendments to these documents located in chapter 1346.

Licensing and bonding requirements for mechanical contractors

While 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.

Once a mechanical contractor has properly filed their bond with DLI, they must check with the municipalities in which they intend to work to make sure that they comply with any local licensing, insurance, permitting and inspection requirements. Although mechanical contractors are not licensed by the state, they are subject to local licensing requirements.

The Minnesota State Building Code is the standard for construction statewide, however, the code is enforced by certain cities and townships .

Heating, ventilating and air conditioning documents and forms

  • Bond requirements for installation of gas piping, heating, ventilation, cooling, air conditioning, fuel burning or refrigeration equipment
  • Mechanical bond packet

Mechanical code opinions

Code books

Minnesota’s Bookstore sells a number of mechanical codes, including:

  • Minnesota State Mechanical Code (Chapter 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

Please Note: The Department of Labor and Industry does not accept cash as payment for licenses, inspections, copy requests and other DLI services. Accepted methods of payment include checks, money orders and electronic payments that can be made through the DLI Web site.


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