πŸŽ“ Plumbing apprenticeships by state

Plumbing Apprenticeships in Montana: Programs, Requirements and How to Apply

Founder, HVACHires
Last verified September 2026

Plumbing apprenticeships in Montana are registered by the Montana Registered Apprenticeship Program, which the Department of Labor & Industry (DLI) runs as the state's recognized State Apprenticeship Agency.

Apprentices work without a plumbing license β€” state law exempts an apprentice working under a licensed plumber's supervision β€” but the Board of Plumbers' master-of-record form requires masters to employ only DLI-registered apprentices.

The confirmed programs are UA JATCs in Billings, Missoula and Butte, and a registered apprenticeship completion certificate counts toward the journeyman license in place of 5 years (7,500 hours).

Verify before you rely on this

Licensing rules change by statute, board rule and local ordinance, and this page is career information, not legal advice. Confirm every requirement with the licensing board (or, where licensing is local, the city or county) before you apply, schedule an exam, count hours or bid a job. In Montana, that is the Montana Department of Labor & Industry (Montana Registered Apprenticeship Program).

At a glance

Apprenticeship agency

Montana is a State Apprenticeship Agency (SAA) state: the Department of Labor & Industry runs the Montana Registered Apprenticeship Program, and apprenticeship.gov lists the Montana State Apprenticeship Agency as its state office.

Apprentice registration

Yes β€” with DLI, not a license.

The Board of Plumbers' master-of-record form requires masters to employ only apprentice plumbers registered with the Department of Labor & Industry, while apprentices under a licensed plumber's supervision are exempt from licensure.

Union programs

The UA pipe-trade JATCs our research confirmed: the Billings Piping Industry JATC (UA Local 30), the Missoula Plumbers and Steamfitters JATC (UA Local 459) and the Silver Bow JATC with UA Local 41 (Butte).

The state-office notices naming the Billings and Missoula programs are dated β€” confirm current intakes with each JATC.

Merit-shop programs

Not established in our research β€” we did not verify PHCC, ABC or IEC chapter apprenticeship programs in Montana; ask the Montana Registered Apprenticeship Program office or the chapters.

Hours toward a license

Journeyman plumber: 5 years (7,500 hours) of legally obtained plumbing experience, or a registered apprenticeship completion certificate.

Where to start

Contact a JATC in Billings, Missoula or Butte for current application windows, or ask the Montana Registered Apprenticeship Program office what employer sponsors are registered; once hired, your DLI apprentice registration needs to be in place.

The Montana plumbing license ladder

  1. Apprentice plumber (DLI registration)Entry level

    Registered with the Department of Labor & Industry rather than licensed by the Board of Plumbers β€” the board's master-of-record form requires masters to employ only DLI-registered apprentice plumbers.

  2. Journeyman PlumberJourneyman

    Montana's first plumbing license class: applicants qualify with 5 years (7,500 hours) of legally obtained plumbing experience or a registered apprenticeship completion certificate.

  3. Master PlumberMaster

    Applicants need 4 years as a licensed journeyman, 3 of them (which may run concurrently) working with a licensed master plumber or in a supervisory capacity.

Who offers plumbing apprenticeships in Montana?

Montana is a State Apprenticeship Agency (SAA) state: apprenticeship.gov lists the Montana State Apprenticeship Agency as its state office, and the Department of Labor & Industry runs the program as the Montana Registered Apprenticeship Program, counting more than 3,400 Montanans working and training in registered apprenticeships.

A program becomes a registered apprenticeship when the registering agency registers it β€” DOL's Office of Apprenticeship or a recognized State Apprenticeship Agency acting for DOL; in Montana, that is the state agency.

Our research confirmed three UA pipe-trade programs: the Billings Piping Industry JATC (UA Local 30) and the Missoula Plumbers and Steamfitters JATC (UA Local 459), named in the state apprenticeship office's sponsor notices, and the Silver Bow JATC with UA Local 41 (Butte), described on the local's own site.

The state office's sponsor list also names a Montana Sheet Metal Workers JATC β€” the HVAC sheet-metal route, not a plumbing program.

Our research did not verify PHCC, ABC or IEC chapter programs in Montana.

An apprenticeable occupation must require at least 2,000 hours of on-the-job learning under the industry standard.

β€œMore than 3400 Montanans are actively working and training in a Registered Apprenticeship across the state.”

Do Montana plumbing apprentices need to register or hold a license?

πŸ“œ MCA Title 37, Chapter 69 (Plumbers)

Montana licenses plumbers statewide through the Board of Plumbers (Department of Labor & Industry) in two classes, Journeyman and Master, and a person working in the field of plumbing as a master or journeyman must first obtain a license, subject to statutory exceptions.

Apprentices are different: an apprentice as state law defines the term (MCA 39-6-101) who works under a licensed plumber's supervision is exempt from Montana plumbing licensure.

Registration still applies in practice: the board's master-of-record form requires masters to employ only apprentice plumbers registered with the Department of Labor & Industry.

One supervision rule to know: a licensed journeyman may work only in the employment of a licensed master plumber unless board rule permits otherwise.

Our research did not find a Montana apprentice-to-journeyman supervision ratio for plumbing β€” a gap in our sources, not proof none exists β€” so ask the board or the sponsor.

Finish a registered apprenticeship and the registration agency β€” the Montana State Apprenticeship Agency β€” issues a completion certificate: a credential, not the license, but one the Board of Plumbers accepts for journeyman applicants in place of 5 years (7,500 hours) of experience.

β€œA licensed journeyman plumber may perform work only in the employment of a licensed master plumber unless otherwise permitted by rule of the board.”

Which union programs and locals train plumbing apprentices in Montana?

Our research confirmed three UA pipe-trade apprenticeships β€” two named in the state apprenticeship office's sponsor notices and one on UA Local 41's own site.

The Billings Piping Industry JATC trains plumbers, pipefitters and refrigeration fitters at UA Local 30's training facility at 317 Washington in Billings β€” a five-year program with at least 246 hours of classroom training each year, taking applicants 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 with at least 7,500 on-the-job hours and 450 classroom hours, taking applications twice a year online β€” that program description is the local's own.

Nationally, the UA describes its registered apprenticeships as typically five years long and covering plumbing, pipefitting, HVACR, welding and fire protection β€” a national description, not the Montana programs' terms.

The notices naming the Billings and Missoula programs reference 2021 openings, so confirm current windows with each JATC.

β€œANY SELECTED APPRENTICE SHALL BE REQUIRED TO ATTEND A MINIMUM OF 246 HOURS OF CLASSROOM TRAINING FOR EACH YEAR OF THE FIVE-YEAR PROGRAM.”

Are there merit-shop or employer programs in Montana?

Our research did not verify PHCC, ABC or IEC chapter apprenticeship programs in Montana β€” that is what our sources show, not proof that none exists.

Nationally, ABC describes itself as founded on the merit shop philosophy and reports more than 24,000 members, and PHCC offers apprenticeship content through an online learning academy; chapter-level availability is decided chapter by chapter and was not verified for Montana.

Whatever kind of sponsor runs it, the registration test is the same: a program is a registered apprenticeship when the registering agency β€” Montana's State Apprenticeship Agency here β€” registers it.

Ask any shop you are considering whether its program is registered, and with whom; the Montana Registered Apprenticeship Program office is the place to confirm a sponsor's status.

Which schools and related-instruction providers train Montana plumbing apprentices?

The classroom requirements we captured are the sponsors' own: the Billings Piping Industry JATC requires a minimum of 246 hours of classroom training for each year of its five-year program, and the Silver Bow JATC with UA Local 41 requires at least 7,500 on-the-job hours and 450 classroom hours.

Our research did not capture a classroom-hour figure for the Missoula JATC, which trains plumbers, pipefitters, steamfitters, refrigeration fitters and gasfitters for western Montana counties.

Federally, DOL recommends a minimum of 144 hours of related technical instruction per year of apprenticeship β€” a recommendation, not a requirement.

The Montana sponsors our research captured are union JATCs; we did not identify which Montana colleges provide related instruction for plumbing apprentices β€” the Montana Registered Apprenticeship Program office is the place to ask about college-based related instruction.

How do you apply for a plumbing apprenticeship in Montana?

Apply with the sponsor.

The Billings JATC's notice sets the entry bar at 18 or older with a diploma or GED, and the Silver Bow JATC with UA Local 41 takes applications twice a year online.

The state-office notices our research captured are dated β€” confirm current windows and paperwork with any sponsor before you apply.

Federal registered-apprenticeship floors set the baseline: an apprentice must be at least 16 unless a higher minimum age is set by law, there is no federal maximum age, and program terms may be time-based, competency-based or hybrid.

Pay follows a progressively increasing schedule tied to skill, with the entry wage not below the FLSA minimum wage where applicable β€” the percentage steps are each program's own.

Once hired, your DLI registration needs to be in place: the Board of Plumbers' form requires masters to employ only DLI-registered apprentices.

From there you build toward the journeyman license on 5 years (7,500 hours) of experience or a registered apprenticeship completion certificate.

Our Montana plumbing license requirements page carries the license-side detail, our guide to how to get a plumbing apprenticeship walks the application itself, and our plumbing apprentice pay guide explains how apprentice rates work.

What This Page Does, and Doesn’t, Cover

This page summarizes the Montana board pages, statutes, rules and other sources listed below, as read for this state-by-state plumbing 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 plumbing licensing in Montana and HVAC apprenticeships in Montana.

Frequently Asked Questions

Do you need a license to be a plumbing apprentice in Montana?

Not while you work under a licensed plumber's supervision β€” state law exempts an apprentice, as the term is defined in MCA 39-6-101, from plumbing licensure in that setting.

You do register with the Department of Labor & Industry: the Board of Plumbers' master-of-record form requires masters to employ only DLI-registered apprentice plumbers.

The license comes later β€” journeyman applicants qualify on 5 years (7,500 hours) of plumbing experience or a registered apprenticeship completion certificate.

How long is a plumbing apprenticeship in Montana?

The Billings and Butte programs our research captured run five years: the Billings Piping Industry JATC describes a five-year program with at least 246 classroom hours per year, and the Silver Bow JATC with UA Local 41 in Butte runs a 5-year apprenticeship with at least 7,500 on-the-job hours and 450 classroom hours.

The UA describes its registered apprenticeships nationally as typically five years.

For the license itself, the Board of Plumbers counts 5 years (7,500 hours) of experience or accepts a registered apprenticeship completion certificate.

How much do plumbing apprentices get paid in Montana?

Each program's registered standards set its own pay.

Federal rules require a progressively increasing wage schedule tied to skill, with the entry wage not below the FLSA minimum wage where applicable, and no federally set percentage steps.

Our research did not capture a verified dollar figure for Montana apprentice wages, so compare sponsor offers directly.

Our plumbing apprentice pay guide explains how apprentice rates work.

What do you need to get into the Billings piping apprenticeship?

The notice the state apprenticeship office posted requires applicants to be at least 18 and to hold a high school diploma or GED.

The program trains plumbers, pipefitters and refrigeration fitters across five years, with a minimum of 246 classroom hours each year.

That notice references 2021 openings, so confirm current application windows and paperwork with the JATC before you apply.

Where in Montana are the plumbing apprenticeship programs?

The programs our research confirmed are in Billings (the Piping Industry JATC, UA Local 30), Missoula (the Plumbers and Steamfitters JATC, UA Local 459, which trains apprentices for western Montana counties) and Butte (the Silver Bow JATC with UA Local 41, taking applications twice a year online).

The state apprenticeship office also lists a Montana Sheet Metal Workers JATC β€” the HVAC sheet-metal route, not a plumbing program.

Ask each sponsor about training locations and intake.

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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).