Vermont to Massachusetts: master HVAC technician license reciprocity

Massachusetts' highest personal HVAC-type credential is the Refrigeration Contractor license, which M.G.L. c. 146, § 81 calls the 'master refrigeration technician' and 528 CMR 11.03 the 'Master Refrigeration Technician/Contractor'. It is issued by the Bureau of Pipefitters, Refrigeration Technicians and Sprinkler Fitters (OPSI) to an individual who has held and used a Massachusetts Refrigeration Technician license for at least 2,000 hours and completed 100 hours of additional Bureau-approved refrigeration training; it allows the holder to establish a refrigeration business and employ licensed technicians and apprentices, and the license number must appear on vehicles and invoices. The applicant pays a $150 non-refundable application fee and must pass the OPSI contractor exam at 70%; the license renews for $75. There is no general HVAC or mechanical contractor license in Massachusetts; hydronic heating contractors hold a Master Pipefitter license and oil-burner firms are certified by the Department of Fire Services. The contractor application lets an out-of-state applicant substitute 2,000 hours under a refrigeration license held in another jurisdiction and 100 hours of training taken elsewhere, subject to the Bureau agreeing to let the candidate sit the exam; the exam itself is never waived because the Bureau has no reciprocity agreements.

Vermont has no master HVAC, HVAC contractor, mechanical contractor or refrigeration contractor license and no statewide general contractor license, so a person or firm may install and service heating, cooling, ventilation and refrigeration systems without any state HVAC credential; no Vermont city was found to license the trade either. The credentials that do apply have no master tier: the Division of Fire Safety's gas certification (LP, natural gas or both, $60 for three years, NPGA or AGA training plus the Vermont Energy Goals module) and oil burner installer certification ($60 for three years, NORA Silver or Gold for full installation, Bronze for limited service) are required of every individual who installs, inspects or services fuel-burning equipment under 20 V.S.A. s. 2731, and the Type-S Specialist electrician license in field C3 (refrigeration or air conditioning, air-to-air heat pumps) or A1 (automatic gas or oil heating, ground-source heat pumps) lets a licensee wire that equipment 'as an employee or an independent contractor' for $115 per field, which is the closest thing Vermont has to an HVAC contractor credential. None of these recognizes an out-of-state HVAC or mechanical contractor license: the gas and oil certifications are issued on the national training certificates alone, and the Type-S reciprocity on the electrical application is limited to Maine and New Hampshire electrical licensees. A master HVAC licensee arriving from another state therefore has nothing to transfer; they need federal EPA Section 608 certification for refrigerant work, the gas or oil certification for fuel-burning equipment, a Type-S (or journeyman/master electrician) license for the wiring, and local permits.