Minnesota to New Mexico: master HVAC technician license reciprocity

New Mexico has no 'master HVAC' license. Its highest heating and cooling credential is the MM-3 Heating, Ventilation and Air Conditioning contractor classification (install, alter, repair, service and maintain HVAC air-handling and refrigeration equipment, piping and ductwork, with controls at 24 volts or less); the broader MM-98 Mechanical classification covers MM-3 plus plumbing, gas fitting and process piping. CID issues the contractor's license to the contracting entity and a personal, non-transferable certificate of qualification to the qualifying party, the individual who passed the MM-3 trade exam and the Contractor's Business and Law exam, so this site maps the MM-3 qualifying party to the master level. A qualifying party needs four years of experience in the classification within the ten years before application. Even with an MM-3 license the hands-on work must still be done by or under a certified JR or JSM journeyman. CID publishes reciprocity only for EE-98J electrical journeymen; no reciprocity or exam waiver is published for mechanical qualifying parties or contractors, although NMSA 60-13-14(C) allows the division to enter into reciprocal agreements with states having equivalent requirements.

Minnesota issues no master HVAC, master refrigeration or HVAC contractor license. The only statewide requirement is the $25,000 mechanical contractor bond that a business files with the Department of Labor and Industry (DLI) under Minn. Stat. 326B.197 ($100 filing fee, valid two years) before contracting for gas, heating, ventilation, cooling, air conditioning, fuel burning or refrigeration work; DLI states that there is no state license for mechanical contractors or their employees and that cities may require licensure or a competency card. The master-level credential therefore exists only at the city level: Minneapolis issues Master Warm Air Ventilation and Master Refrigeration Certificates of Competency (four years of experience and education plus an ICC exam) and requires a master card holder behind each HVAC Class A or Refrigeration Systems Installer contractor license; Saint Paul issues Master Warm Air, Ventilation and Refrigeration competency cards and requires one for each Warm Air/Ventilation business trade license; Rochester licenses individual HVAC Master Installers after a city certificate of competency; Bloomington licenses mechanical contractors on a Minneapolis or Saint Paul card or its own test. An out-of-state master HVAC or mechanical contractor license has no state-level recognition and none of these cities publish a path that accepts it; Minneapolis and Saint Paul recognize each other's master cards. Federal EPA Section 608 certification is separately required of anyone handling refrigerants.