Manufactured Housing: Installers

Get Licensed

All installers of manufactured homes are required to obtain either one or all of three installer licenses.

  • Manufactured Housing Division Installer License (MHD-1) allows an installer to block, level, connect sewer and water, and install permanent or alternative foundations.
  • Manufactured Housing Division Installer License (MHD-2) allows an installer to perform all MHD-1 functions, in addition to working on alternations and modifications on a manufactured home.
  • Manufactured Housing Division Installer License (MHD-3) allows an installer to perform all functions of the MHD-1 and MHD-2 , along with the service and repair of natural gas piping and appliances, change and adjust orifices in a manufactured home prior to connection to L.P. gas, and to service and repair plumbing and electrical systems.
  • The scope of an MHD-3 Y licensee shall be extended to install gas yardlines to manufactured homes upon acquiring an appropriate endorsement from the division.
  • The scope of an MHD-3 E licensee shall be extended to install feeder assemblies from the on-site utility terminal to the manufactured home not to exceed 30 feet. The provisions for obtaining a separate electrical endorsement shall include a minimum of two years in the last 10 years of verifiable experience performing electrical work on manufactured homes or related equipment.


Please contact licensing for more information: 505-365-3429 or Aaron.Aragon2@state.nm.us

Obtaining an installer licenses –

For more information on PSI Examinations Click Here

PSI Testing Study Reference Material

Manufactured Home Procedural and Enforcement Regulations

Code of Federal Regulation 3280

Code of Federal Regulation 3285

Code of Federal Regulation 3286

Manufactured Housing Requirements

NM Manufactured Housing Division Rules & Regulations

Truth in Lending

FDIC Regulation Z

Installer 1 exam, also requires the following code book for reference:

2009 Uniform Plumbing Code, International Association of Plumbing and Mechanical Officials, (800) 854-2766http://www.iapmo.org/

Installer 2 exam, also requires the following code books for reference:

2009 Uniform Plumbing Code, International Association of Plumbing and Mechanical Officials, (800) 854-2766,www.iapmo.org

2010 or 2016 Carpentry and Building Construction, (800) 334-7344www.glencoe.com

Installer 3 exam, also requires the following code books for reference:

2015 Uniform Plumbing Code, International Association of Plumbing and Mechanical Officials, (800) 854-2766www.iapmo.org

2017 National Electrical Code, (800) 344-3555www.nfpa.org

2015 Uniform Mechanical Code, International Association of Plumbing and Mechanical Officials, (800) 854-2766,www.iapmo.org

NFPA 54 – 2006 National Fuel Gas Code, (800) 344-3555www.nfpa.org

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