Montana trains HVAC apprentices through registered apprenticeship programs, not through an HVAC license: the state licenses no HVAC trade, so there is no apprentice licence to hold.
The Montana Department of Labor & Industry is the state apprenticeship agency, running the Montana Registered Apprenticeship Program, and the programs the research confirmed are union JATCs in Billings, Missoula and Butte plus a Montana Sheet Metal Workers JATC; merit-shop chapter programs were not verified.
Here is who offers what, how registration works, and how to apply.
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At a glance
Montana is a State Apprenticeship Agency state: the Department of Labor & Industry runs the Montana Registered Apprenticeship Program, with more than 3,400 Montanans in registered apprenticeships.
No state HVAC licence exists to hold; on the plumbing side, apprentices under the supervision of a licensed plumber are exempt from plumbing licensure, and the Board of Plumbers' form says a master may employ only apprentice plumbers registered with the Department of Labor & Industry.
Billings Piping Industry JATC (UA Local 30), Missoula Plumbers & Steamfitters JATC (UA Local 459), Silver Bow JATC with UA Local 41 in Butte, and a Montana Sheet Metal Workers JATC.
Not established in our research β PHCC, ABC and IEC chapter programs in Montana were not verified, so ask the chapters and the state apprenticeship office.
There is no state HVAC licence for hours to count toward.
Silver Bow JATC's program totals at least 7,500 on-the-job hours and 450 classroom hours.
Check the sponsor list the Montana Registered Apprenticeship office publishes, then contact the JATC or employer; Silver Bow JATC takes applications twice a year online.
Apprenticeship registration in Montana is a state function: apprenticeship.gov lists the Montana State Apprenticeship Agency, and the Department of Labor & Industry runs the program as the Montana Registered Apprenticeship Program, with more than 3,400 Montanans training in a registered apprenticeship across the state.
Registered programs are registered either by the U.S. Department of Labor's Office of Apprenticeship or by a recognized State Apprenticeship Agency acting for it β in Montana, the state agency.
A registered apprenticeship is structured, paid training: an apprenticeable occupation must require at least 2,000 hours of on-the-job learning under the industry standard.
The HVAC training the research confirmed sits inside piping and sheet-metal programs, with no stand-alone HVAC program confirmed; the sections below name the sponsors.
Montana licenses no HVAC trade at the state level: the Department of Labor & Industry's list of 41 boards and licensing programs includes Plumbers, Electrical, Boiler Operator, Fire Protection and Construction Contractor, but no HVAC, mechanical or refrigeration licence.
It has no HVAC apprentice licence, no journeyman or master HVAC licence and no state HVAC exam.
A Montana plumbing licence is not an HVAC licence, though it covers water heaters and their vents.
On the plumbing side, an apprentice as defined in MCA 39-6-101, under the supervision of a licensed plumber, is exempt from plumbing licensure, and the Board of Plumbers' master-of-record form states a master may employ only apprentice plumbers registered with the department.
Finishing a registered apprenticeship earns a certificate from the registration agency β not a trade licence.
Two more checks: the federal rule requires anyone who could reasonably be expected to violate the integrity of a refrigerant circuit while maintaining, servicing, repairing or disposing of appliances with regulated refrigerants to pass an exam from an EPA-approved technician certification program; and whether Billings, Missoula or other cities issue their own mechanical licences was not verified β ask the city or county where the work happens.
βA licensed master plumber may employ only apprentice plumbers registered with the state department of labor and industryβ
The union route the research confirmed runs through piping and sheet-metal JATCs, with no stand-alone HVAC program among them.
The Billings Piping Industry JATC (UA Local 30's facility at 317 Washington) trains plumbers, pipefitters and refrigeration fitters in a five-year program with at least 246 classroom hours a year; applicants must be 18 or older with a diploma or GED.
The Missoula Plumbers and Steamfitters JATC (UA Local 459, 1026 South 5th Street West) trains plumbers, pipefitters, steamfitters, refrigeration fitters and gasfitters for western Montana counties.
The Silver Bow JATC with UA Local 41 in Butte runs a 5-year plumbing, HVAC, pipefitting and welding apprenticeship β the one confirmed program whose trade list names HVAC β requiring at least 7,500 on-the-job hours and 450 classroom hours, with applications twice a year online.
The state office's sponsor list also names a Montana Sheet Metal Workers JATC, the HVAC sheet-metal route; its site did not load when we checked, so confirm details with the sponsor.
Nationally, the UA describes its registered apprenticeships as typically lasting five years and covering plumbing, pipefitting, HVACR, welding and fire protection; the state site's Montana notices date to 2021 openings, so verify windows with each local.
Our research did not verify PHCC, ABC or IEC chapter apprenticeship programs in Montana.
That is not evidence that none exist β we simply cannot name one, so ask those associations' Montana chapters and the state apprenticeship office directly.
An employer's credential picture is simple by comparison: Montana licenses no HVAC trade skill at the state level, and an HVAC business that has employees β as well as every corporation and manager-managed LLC β needs the state Construction Contractor License, a business licence rather than a trade-skill licence.
Ask any prospective employer two questions: the apprentice-to-journeyworker ratio it operates (the federal rule requires a numeric ratio but sets no specific number, and our research found no Montana-wide ratio for plumbing or HVAC) and its wage schedule.
In the two programs the research captured classroom hours for, the classroom happens inside the apprenticeship: the Billings JATC's standards require at least 246 classroom hours per year, and Silver Bow's program totals at least 450 classroom hours alongside its 7,500 on-the-job hours.
The federal baseline is a recommendation, not a requirement: DOL recommends at least 144 hours of related technical instruction per year of apprenticeship and does not require it β check what the sponsor's standards require.
Our research did not confirm which Montana colleges, if any, deliver HVACR classroom instruction, so use the sponsor list the state apprenticeship office publishes and ask the schools you are considering.
Start from the sponsor: pick your route β refrigeration fitting in a piping local's program, the sheet-metal trade, or an employer program, if one is registered near you β and contact the JATC or shop about its next application window.
The Silver Bow JATC takes applications twice a year online, and the Billings program's posted standards ask for applicants 18 or older with a diploma or GED; the federal floor for a registered apprentice is 16 unless a higher minimum age is set by law.
Because the state office's notices date to 2021 openings, confirm current windows and application requirements with each sponsor before you apply.
Registered programs pay a progressively increasing wage schedule tied to the skill you acquire, and the entry wage may not be below the FLSA minimum wage where it applies.
Once you are in, your on-the-job hours and classroom instruction accumulate toward the completion certificate the registration agency issues.
This page summarizes the Montana board pages, statutes, rules and other sources listed below, as read for this state-by-state HVAC apprenticeships series, current as of September 2026.
It is not a substitute for the instructions the Montana Department of Labor & Industry (Montana Registered Apprenticeship Program) publishes.
For the rest of the picture in Montana, see HVAC licensing in Montana and plumbing apprenticeships in Montana.
No state HVAC apprentice licence exists to hold: Montana licenses no HVAC trade at the state level, and its board list includes no HVAC, mechanical or refrigeration licence.
The registration that matters is with a registered apprenticeship program.
On the plumbing side, an apprentice (as Montana law defines the term) working under the supervision of a licensed plumber is exempt from plumbing licensure, and the Board of Plumbers' form says a master may employ only apprentice plumbers registered with the Department of Labor & Industry.
The two programs the research captured lengths for run five years: the Billings Piping Industry JATC's program is five years with at least 246 classroom hours a year, and the Silver Bow JATC in Butte runs a 5-year program with at least 7,500 on-the-job hours and 450 classroom hours.
Nationally, the UA describes its registered apprenticeships as typically lasting five years.
Application standards can change, so confirm the length with the sponsor you apply to.
Ask each sponsor for its wage schedule.
The federal rule registered programs follow is that pay rises in a progressively increasing schedule tied to the skill you acquire, and the entry wage may not be below the FLSA minimum wage where it applies; the exact steps are each program's own.
No β not at the state level.
Montana issues no HVAC journeyman or master licence and holds no state HVAC exam; the Department of Labor & Industry's list of 41 boards and licensing programs includes no HVAC, mechanical or refrigeration licence.
A Montana plumbing licence covers water heaters and their vents but is not an HVAC licence, and refrigerant work carries its own federal certification requirement instead.
Montana licensing aside, refrigerant work carries a federal requirement: anyone who could reasonably be expected to violate the integrity of a refrigerant circuit while maintaining, servicing, repairing or disposing of appliances containing regulated refrigerants must pass an exam from an EPA-approved technician certification program.
That certification is federal β it is not a Montana licence, and Montana issues no HVAC licence of its own.
Sources
Sourced from the documents listed above.
Verified September 2026.
This is career information, not legal advice.
Confirm current rules with the Montana Department of Labor & Industry (Montana Registered Apprenticeship Program).