HVAC License Massachusetts: There Isn't One, and Two Routes Close on November 9, 2026

There is no such thing as a Massachusetts HVAC license.

That is not a technicality. The Commonwealth issues no credential by that name, no board administers one, and no exam exists for it. Massachusetts instead splits heating, ventilation, air conditioning, and refrigeration work across five licensing regimes overseen by four licensing bodies inside two state agencies, and which one you need depends on what you are touching, how big it is, and whether it burns fuel.

That already makes most "Massachusetts HVAC license requirements" pages on page one wrong or incomplete. But there is a second, more urgent problem, and it has a date on it, now less than a month away.

At a glance

• HVAC license: There is no such thing as a Massachusetts HVAC license.
• Closest credential: Refrigeration Technician / Refrigeration Contractor, for refrigeration work over 10 tons in the aggregate
• November 9, 2026: one path only, 450 hours of approved study plus 6,000 clock hours as a licensed apprentice
• Exam: written, administered by the Bureau, 70% or more correctly
• Fees: $40 Apprentice, $75 Journeyman/Technician, $150 Master/Contractor

New to licensing in Massachusetts? Start with the Massachusetts contractor license requirements, or see how contractor licensing works state to state on our contractor license overview.

The November 9, 2026 deadline that changes everything

Massachusetts is about to eliminate two of the three routes to a refrigeration technician license, and today's date puts that cutover inside the next four weeks.

Under 528 CMR 11.03(2), the requirements split on a hard date. For applications dated and received by the Division before November 9, 2026, there are three alternative paths to sit for the Journeyman Refrigeration Technician exam:

• 250 hours of Bureau-approved refrigeration study + EPA Section 608 Universal certification + 6,000 actual work hours as a Refrigeration Apprentice; or
• 500 hours of study + EPA 608 Universal + 4,000 work hours; or
• 1,000 hours of study + EPA 608 Universal + 2,000 work hours.

For applications dated on or after November 9, 2026, there is exactly one path: "a formal 450 hour course of study in a refrigeration education course approved by the Bureau" plus EPA 608 Universal plus "refrigeration work experience totaling a minimum of 6,000 clock hours as a validly licensed Refrigeration Apprentice."

The trade-school-for-hours options disappear. If you went the school-heavy route, a full 1,000-hour program with 2,000 hours in the field, or 500 and 4,000, you are eligible today and you will not be eligible if your application is dated on or after November 9, 2026.

There is a narrow escape hatch. The regulation permits the Bureau, "in its discretion," to accept applications under the old requirements for individuals who suffered "a relevant, documented hardship," but it slams that door too: "no such waivers shall be granted on or after May 10, 2027."

The same cutover, with the same dates and the same hardship language, applies to journeyman pipefitters under 528 CMR 11.02(2)(a). Their pre-cutover options are 350 hours of study plus 6,000 work hours, 500 and 4,000, or 1,000 and 2,000; after November 9, 2026 it is 450 hours of study plus 6,000 work hours, full stop.

One more wrinkle worth knowing: the Commonwealth's own consumer-facing application page for the Refrigeration Technician license already describes only the post-cutover version, 6,000 hours plus not less than 450 hours of study. The three-route structure still lives in the regulation and is still available until November 9. If you qualify under a route the state's own how-to page no longer mentions, the regulation is what governs. Get the application dated and in.

If you have the school hours and are short on field hours, this is the single most time-sensitive fact in Massachusetts mechanical licensing right now. Applications must be filed with the Division 30 days before the exam date, so working backward from November 9 leaves less runway than the date suggests. With today's date already inside that 30-day window for a November 9 filing deadline, anyone relying on the 500/4,000 or 1,000/2,000 paths needs an application in now, not a plan for next month.

The five credentials that actually do HVAC work in Massachusetts

Notes on the table:

• Refrigeration and pipefitter licensing both sit with the Bureau of Pipefitters, Refrigeration Technicians, and Sprinkler Fitters, inside the Office of Public Safety and Inspections (OPSI), Division of Occupational Licensure.
• Plumbing and gas fitting sits with the Board of State Examiners of Plumbers and Gas Fitters, also inside the Division of Occupational Licensure, but under a separate board.
• Sheet metal sits with the Board of Examiners of Sheet Metal Workers, a third board inside the same Division.
• Oil burner technician work sits at a second agency entirely, the Department of Fire Services, Boiler and Pressure Vessel Program.
• Pipefitting excludes sheet metal work, refrigeration systems, boilers, and plumbing under the statute's own definition.

Four of those five sit inside one agency, the Division of Occupational Licensure, but under three different boards with their own rules, fees and portals. The fifth, oil burner, sits at a second agency entirely, the Department of Fire Services. A residential contractor servicing an oil-fired boiler is dealing with none of the agencies that license refrigeration, pipefitting, or sheet metal work.

Refrigeration Technician / Refrigeration Contractor. Required, per the Bureau's own application page, "for anyone who performs refrigeration work having a capacity over 10 tons in the aggregate." This is the closest thing Massachusetts has to an HVAC license, and it is the one most commercial mechanical work runs on. The statute itself, M.G.L. c. 146, Section 81, defines refrigeration as work on any refrigerant containing part of a system "of a ten ton capacity, or greater," and the Bureau's apprentice page uses the same ten ton or greater wording.

Pipefitter. The PM-01 / PJ-01 "Power, Heating and Cooling" classification is the HVAC-relevant one, covering work and fabrication in power, heating, and cooling piping. Unrestricted pipefitters (PM-00 / PJ-00) cover that plus process piping and pipefitting welding; PM-02 / PJ-02 is process piping only. A welder restriction (W) attaches on passing the relevant exam. The size line matters: M.G.L. c. 146, Section 81 defines pipefitting as piping work on heating systems rated greater than 700,000 BTU (plus steam, air conditioning, process and high pressure systems), and it excludes sheet metal work, refrigeration systems, boilers and plumbing.

Plumbing and gas fitting. Anything touching the gas train on a furnace, boiler, or rooftop unit is gas fitting work and needs a gas fitting license. See our Massachusetts plumbing license guide for that ladder.

Sheet metal. Ductwork and building-envelope work pull in a separate license administered by the Board of Examiners of Sheet Metal Workers. It sits inside the same Division of Occupational Licensure as the refrigeration Bureau, but it is a separate board with its own regulations, fees and portal. See the full breakdown below.

Oil burner technician. Furnace and boiler work touching the burner itself, not the ductwork or piping around it, needs an oil burner technician certificate from the Department of Fire Services. See the full breakdown below.

Construction Supervisor License (CSL). For structural work on the building envelope around HVAC installations, a separate CSL through the Board of Building Regulations and Standards may also apply. Confirm current CSL scope directly with BBRS/OPSI before relying on any figure; requirements there have shifted in recent cycles.

The practical consequence: a Massachusetts mechanical contractor of any size is not holding "an HVAC license." It is holding a stack, typically a Refrigeration Contractor license, a gas fitting credential, and pipefitting coverage, sometimes sheet metal and oil burner credentials too, and each one is tied to a specific licensed individual.

What every tier costs

Fees below are each agency's own published, non-refundable figures. They change; confirm the current amount before applying.

Notes on the fee tables:

• Sheet metal journeyperson and master applicants also pay a separate exam fee directly to the Board's exam vendor, PSI, by card, cashier's check or money order once the application is approved; that fee is not published on the Board's own fee pages, so confirm the current amount with PSI at scheduling.
• Oil burner has no separate master tier, so there is no contractor-level fee or renewal to report.
• Refrigeration and pipefitter licenses run on a two-year cycle that expires on the holder's birthday, under M.G.L. c. 146, Section 85: the license stays valid until the first birthday falling more than twelve but not more than twenty four months after issuance, then alternates odd and even birth years at each renewal.
• Sheet metal licenses instead expire on the 28th day of the license holder's birth month, every two years, with a $57 late fee.
• Oil burner certificates run on a flat two-year cycle.
• Valor Act fee reductions may apply across these boards for active military members, spouses, and veterans.

Two traps here beyond the fees themselves. First, three separate application channels: MyLicenseOne for refrigeration and pipefitting, eLIPSE for sheet metal, and a paper application mailed to the Department of Fire Services' Boiler and Pressure Vessel Program for oil burner. Sheet metal is a relatively recent arrival on eLIPSE: the Division of Occupational Licensure moved the Board of Examiners of Sheet Metal Workers off its older ePLACE portal and onto eLIPSE, the same platform the Board of State Examiners of Plumbers and Gas Fitters already used, in 2026. If you bookmarked an ePLACE login for a sheet metal renewal, it no longer works. Second, every one of these licenses renews every two years, but on different dates, as the notes above show.

Refrigeration Technician: the full requirements

Apprentice first. You cannot accrue qualifying hours without a Refrigeration Apprentice license. Under 528 CMR 11.03(1) the apprentice must be registered with the Department of Labor and Workforce Development and the Division of Apprentice Standards (DAS), enrolled in a DAS-registered apprentice program, and must submit a copy of the annual Apprentice ID card issued by DAS along with the application and fee.

The Bureau states the employment condition plainly on its own guidance: a Refrigeration Apprentice "must be employed by a Massachusetts Refrigeration Contractor for the duration of their apprenticeship," and work hours "will only be accepted while registered with the DAS, licensed with the OPSI, and under the employment of the Refrigeration Contractor." Three conditions, all of which must be true simultaneously, or the hours do not count.

Apprentice renewals are capped, but the sources disagree on the number. 528 CMR 11.03(1), as published by Cornell's Legal Information Institute, reads: "Each applicant will be limited to three renewals of his or her apprentice license unless otherwise approved by the Bureau upon showing a documented hardship and verification that the applicant is enrolled in an educational program to enable completion of his/her apprenticeship." The Bureau's own current apprentice application and renewal pages on mass.gov, however, say licensed apprentices are limited to two renewals unless the Bureau approves more. Plan on the stricter, two-renewal figure the Bureau's own pages use until the Bureau confirms which one it applies.

Unlicensed time is worth nothing. 528 CMR 11.07(4) is unusually blunt: apart from vocational-school programs, "the Bureau shall not grant any work experience credit to an individual for any period in which they did not hold a valid license issued by the Bureau." Years spent doing refrigeration work without an apprentice license are not partially credited or discounted. They are zero, and the same section notes this does not prevent the Bureau from disciplining you for unlicensed practice on top of it.

Out-of-state experience has two specific traps. Under 528 CMR 11.07(1)(d), absent special Bureau approval, applicants get no credit for work experience in a jurisdiction that does not require a license, or for licenses from a jurisdiction that does not require formal education. And under 528 CMR 11.07(1)(b), unless Massachusetts has a reciprocity agreement with that jurisdiction, you are sitting the exam regardless. As covered below, Massachusetts does not publish a reciprocity agreement for this license with any other state.

Application requirements. High school diploma or equivalent, a 2 inch by 2 inch passport-style photo (unless you sign the RMV photo release), a copy of your Universal CFC certification, and documentation of your education and employment hours. If you're unclear on how EPA 608 relates to state licensing, we cover that distinction in EPA 608 certification vs. an HVAC license.

Exam. Written, administered by the Bureau, and you must answer 70% or more correctly. Applications must be filed 30 days before the exam date.

Applicants are notified roughly four to eight weeks after OPSI receives the application, and examinations are held as applications arrive, first come, first served. Scores post to the OPSI website in about a week. If you fail, you must reapply to take the exam, there is no automatic rescheduling.

The Technician application fee is $75, non-refundable; the Apprentice fee is $40. Fees are set by the Division and change; confirm the current amount with OPSI before applying. Valor Act fee reductions may apply for active military members, spouses, and veterans. Applications run through the MyLicenseOne portal, a different system from the eLIPSE platform the plumbing and sheet metal boards use.

Master Refrigeration Technician / Refrigeration Contractor

This is the business-level credential, and the requirements are shorter than most expect. Under 528 CMR 11.03(3), applicants need:

• At least 2,000 hours of work experience as a Massachusetts Journeyman Refrigeration Technician; and
• 100 hours of Bureau-approved education; and
• a passing written exam score of 70% or better.

The application fee for the Contractor tier is $150, non-refundable, confirmed on the Division's own how-to page.

A Master Refrigeration Technician / Refrigeration Contractor who has a regular place of business, alone, with other masters, or with journeymen or apprentices in his or her employ, must prominently display the license number "on all commercial vehicles, offers, invoices, installation drawings, and on all stationery used in their business," with vehicle lettering that is "visible, legible and prominently displayed on vans, trucks, and doors of stake body trucks."

That advertising duty is not decorative. It is one of the easiest violations for an inspector to document from a parking lot.

Pipefitter licensing, briefly

Journeyman pipefitter requirements mirror the refrigeration structure, including the same November 9, 2026 cutover described above. Master Pipefitter under 528 CMR 11.02(3) requires at least 2,000 hours as a Massachusetts Journeyman Pipefitter plus 200 hours of Bureau-approved education, split as 100 hours of ASME Code instruction and 100 hours of additional pipefitter theory instruction, and a 70% exam score. The same vehicle-and-stationery display duty applies. Fees mirror the refrigeration schedule closely but are not identical: $40 Apprentice, $75 Journeyman, and $100, not $150, for the Master tier.

One scope limit that catches people: 528 CMR 11.02(2)(e) provides that the holder of a Journeyman Pipefitter license "may not employ other apprentice, journeyman, or master pipefitters." Only a master can employ. A journeyman who starts taking on help is outside the scope of his license.

Sheet metal licensing: a separate board, a separate clock

Ductwork is HVAC work, and Massachusetts licenses it separately, through the Board of Examiners of Sheet Metal Workers. The Board sits inside the Division of Occupational Licensure alongside the Bureau above, but it writes its own rules (271 CMR) under its own statute (M.G.L. c. 112, Sections 237 to 251). Under 271 CMR 3.01, the ladder is:

• Apprentice (Class A). Minimum age 16 under 271 CMR 3.01(3)(a), and the application must be endorsed by the employing master. The Board states that no credit is given for Massachusetts work after February 19, 2011 unless it was done as a licensed apprentice employed by a master sheet metal worker.
• Journeyperson Unrestricted (J-1). 271 CMR 3.01(2)(a): a minimum of 8,000 hours of sheet metal work over no less than five years as a licensed apprentice, plus a Board-approved 750-hour Journeyperson's Course, plus a passing score on the Board's licensure exam.
• Journeyperson Restricted (J-2). 271 CMR 3.01(2)(b): a minimum of 4,800 hours over no less than three years as a licensed apprentice, plus a Board-approved 450-hour Journeyperson's Course, plus the exam. The Board limits the restricted license to residential dwellings of three stories or less and commercial projects of 10,000 square feet or less in buildings of two stories or less.
• Master (M-1 or M-2). 271 CMR 3.01(1)(a): meet every journeyperson requirement, document either 2,000 hours of sheet metal work under a journeyperson license or a Board-approved 40-hour Master's Course, and pass the exam. The Board's current application asks for a valid Massachusetts journeyperson license (a J-1 for the unrestricted M-1) and a certificate for the 40-hour Master's Course or an approved 3-credit business course. A high school diploma or GED is required at the journeyperson and master tiers, not for the apprentice license.

The journeyperson and master exams are given by PSI, which schedules the appointment and collects its own exam fee directly from the candidate once the Board approves the application; a passing score is a minimum of 70% correct. A candidate who fails has six months to retake before filing a new application.

Renewal is biennial, due the 28th day of the license holder's birth month, with a $57 penalty for a late renewal. A contractor tracking a refrigeration license on one clock and a sheet metal license on another needs two separate renewal calendars.

Oil burner technician licensing: the credential most HVAC pages skip entirely

If your company touches an oil-fired furnace or boiler, refrigeration and pipefitter licenses do not cover the burner itself. Under M.G.L. c. 148, Section 10C, no one may "alter, repair or install any oil burning equipment" without an oil burner technician certificate, issued by the Department of Fire Services through its Boiler and Pressure Vessel Program, a third agency separate from both OPSI and the Division of Occupational Licensure.

Two tiers exist: Oil Burner Technician and Oil Burner Apprentice. Both require applicants to be 18. The technician must pass a written exam covering oil burners and associated equipment, 527 CMR 1.00, safety devices, controls, and pipefitting and heating systems. The apprentice certificate has no exam and lets the holder work under the supervision of a licensed Oil Burner Technician.

The application fees happen to match the refrigeration schedule, $75 Technician and $40 Apprentice, with renewals of $50 and $20 every two years, but the application goes by mail to an entirely different office, the Department of Fire Services' Boiler and Pressure Vessel Program in Stow, not the Division of Occupational Licensure in Boston that handles refrigeration, pipefitting, and sprinkler applications.

This is the credential most competitor guides skip, and it is the one most likely to catch a residential company that assumes its refrigeration and gas fitting credentials cover a furnace or boiler service call.

The sprinkler rule that tells you how Massachusetts thinks

Fire protection sprinkler work is a separate license, but its rules are worth reading even if you never touch a sprinkler head, because they show exactly how the Commonwealth treats the relationship between a license and the company using it.

528 CMR 11.04(3)(b)2 requires that a Fire Protection Sprinkler System Contractor "must be or have in its full time employ a valid license holder who is a person or an owner, partner, officer, or in a full time management position" of the contractor, plus 300 hours of additional Bureau-approved education and five years of experience as a Massachusetts sprinkler fitter.

528 CMR 11.04(3)(e) adds the enforcement teeth: "In no case shall a license holder be employed by more than one fire protection sprinkler system contractor at one time." If the license holder leaves, the contractor and holder must notify the Division within 30 days, and the contractor has 60 days to name a replacement. Miss it and "the Division shall revoke the license of the fire protection sprinkler system contractor," which may then "complete only that work which is under contract at the time the license is revoked. No new work may be undertaken."

And the provision almost nobody has published, 528 CMR 11.04(3)(g)2: if a contractor "ceases to be an owner, partner, officer, or in a full time management position of a fire protection sprinkler system business, the holder must downgrade to a journeyman's sprinkler license."

Massachusetts does not merely require the license holder be embedded in the business. It strips the contractor-level credential the moment that embedding ends, a downgrade rule we know of no other state applying the same way.

Sprinkler contractor licenses are also not transferable, and renewal requires proof of liability insurance including completed-operations coverage of at least $500,000 per occurrence, with the Division of Occupational Licensure named as certificate holder. Insurance minimums are set by regulation and change, verify with the Division.

Reciprocity: there isn't any to count on

We found no published reciprocity agreement for the refrigeration or pipefitter licenses with any other state. Under 528 CMR 11.07(1)(a), an out-of-state license holder can petition the Bureau to treat that license, and the experience and education behind it, as substantially equivalent, and the Bureau's application pages accept an out-of-state license plus equivalent documented experience if a majority of the Bureau votes to approve it. But under 528 CMR 11.07(1)(b), without a reciprocity agreement every applicant still sits the Massachusetts exam, and under 11.07(1)(d), work experience earned in a state that does not require a license gets no credit absent special Bureau approval.

Sheet metal is similar: 271 CMR 3.01 lets an out-of-state journeyperson or master ask the Board to waive the course and the exam, but only if the other state's requirements were substantially equivalent and that state accepts Massachusetts licensees in return. Moving a crew or a master into Massachusetts from another state is a fresh application, not a transfer.

Frequently asked questions

Do I need a license to do HVAC work in Massachusetts? There is no HVAC license, but almost certainly yes, some license. Refrigeration over 10 tons in the aggregate needs a Refrigeration Technician or Contractor license, gas piping needs a gas fitting license, heating and cooling piping needs pipefitter licensing, ductwork needs a sheet metal license, and oil-fired furnace and boiler work needs an oil burner certificate. The question is never whether you need a license, only which stack.

Is EPA 608 enough to work on HVAC in Massachusetts? No. EPA Section 608 Universal certification is a federal refrigerant-handling credential and is one of the documents you must submit with your Massachusetts application. It is a prerequisite, not a substitute.

What happens on November 9, 2026? The 250/6,000, 500/4,000, and 1,000/2,000 study-and-experience alternatives for journeyman refrigeration technicians and journeyman pipefitters are eliminated. The only route from that date is 450 hours of approved study plus 6,000 clock hours as a licensed apprentice. Hardship waivers end entirely on May 10, 2027.

How long does it take to get licensed for HVAC work in Massachusetts? Under the post-cutover rule, roughly three to four years of full-time apprentice work to reach journeyman refrigeration technician, plus the 450-hour course. Master/Contractor adds another year: 2,000 journeyman hours plus 100 education hours.

How much does it cost to get a refrigeration license in Massachusetts? The Division's published application fees are $40 Apprentice, $75 Journeyman/Technician, and $150 Master/Contractor, all non-refundable, plus the cost of required schooling, which varies by provider. Confirm current fees with OPSI.

Does Massachusetts license sheet metal or oil burner work separately from refrigeration? Yes, and through different agencies entirely. Sheet metal work runs through the Board of Examiners of Sheet Metal Workers, a separate board inside the Division of Occupational Licensure, with its own 271 CMR rules, fee schedule, and renewal date. Oil burner technician and apprentice certificates run through the Department of Fire Services' Boiler and Pressure Vessel Program, a different agency from the Division of Occupational Licensure.

Is there reciprocity for an out-of-state refrigeration or pipefitter license? We found no published agreement. An out-of-state license can be submitted and the Bureau may accept it as substantially equivalent by majority vote, but the applicant still sits the Massachusetts exam and gets no credit for experience earned where no license or formal education was required, absent special Bureau approval.

Getting a licensed individual into the seat

Massachusetts has no statute labeled "qualifying agent," "responsible managing employee," or "RMO" for any of these trades. It does not need one.

The Master Refrigeration Technician/Refrigeration Contractor and Master Pipefitter credentials are themselves individual, non-transferable licenses a company operates through, and the sprinkler-fitter rules make explicit what the refrigeration and pipefitter sections leave implicit: 528 CMR 11.04(3)(b)2 requires the license holder to be "in its full time employ" as an owner, partner, officer, or full-time manager. 528 CMR 11.04(3)(g)2 forces a downgrade to a lower-tier license the moment that relationship ends. The expectation throughout is a real person genuinely inside the business, not a number supplied from outside it, and the state has written a rule that punishes exactly that outside arrangement.

The Licensing Company places qualifying tradespeople as full-time W-2 employees. Not contractors, not percentage arrangements, not per-project deals, because those are exactly the structures Massachusetts regulators are built to catch. If you need that placement handled rather than built in house, our contractor qualifier services work through the same full-time, W-2 structure.

If you need a qualified individual in place so your company can operate, start at Hire a Qualifying Agent. If you hold a Massachusetts master-level license and want to understand the role, see What Is a Qualifying Agent and Become a Qualifying Agent. Our contractor license guide and state licensing guides cover the rules everywhere else.

Related reading: Massachusetts qualifying officer requirements, Massachusetts plumbing license guide, how to get an electrician license in Massachusetts, contractor license law changes in 2026 by state.

Sources

• 528 CMR 11.02, 11.03, 11.04 and 11.07, Bureau of Pipefitters, Refrigeration Technicians, and Sprinkler Fitters (adopted Mass. Register #1275, eff. 12/5/2014; amended Mass. Register #1534, eff. 11/8/2024), text confirmed at law.cornell.edu/regulations/massachusetts/528-CMR-11-02, /528-CMR-11-03, /528-CMR-11-04 and /528-CMR-11-07 (mass.gov's own regulation page returns an access error to automated retrieval; Cornell's Legal Information Institute mirror was used and checked for currency against the mass.gov how-to pages below), retrieved 2026-10-14
• M.G.L. c. 146, Sections 81 and 85, law.justia.com/codes/massachusetts/part-i/title-xx/chapter-146/section-85, retrieved 2026-10-14
• M.G.L. c. 148, Section 10C, malegislature.gov, retrieved 2026-10-14
• mass.gov/how-to/apply-for-a-refrigeration-technician-license, retrieved 2026-10-14
• mass.gov/how-to/apply-for-an-apprentice-refrigeration-license, retrieved 2026-10-14
• mass.gov/how-to/apply-for-a-refrigeration-contractor-license, retrieved 2026-10-14
• mass.gov/how-to/renew-your-pipefitter-refrigeration-technician-or-sprinkler-fitter-license, retrieved 2026-10-14
• mass.gov/how-to/apply-for-a-master-pipefitter-license, mass.gov/how-to/apply-for-a-journeyman-pipefitter-license and mass.gov/how-to/apply-for-an-apprentice-pipefitter-license, retrieved 2026-10-14
• 271 CMR 3.01, Board of Examiners of Sheet Metal Workers, Individual Licensure, text confirmed at law.cornell.edu/regulations/massachusetts/271-CMR-3-01 (amended Mass Register Issue 1326, eff. 11/18/2016), retrieved 2026-10-14
• mass.gov sheet metal apprentice, journeyperson, and master license application pages (fees $65, $155, $175), and mass.gov/news coverage of the Board's 2026 move from the ePLACE portal to eLIPSE, retrieved 2026-10-14
• mass.gov/how-to/apply-for-an-oil-burner-technician-or-apprentice-certificate, Department of Fire Services, Boiler and Pressure Vessel Program, retrieved 2026-10-14
• mass.gov/orgs/bureau-of-pipefitters-refrigeration-technicians-and-sprinkler-fitters, retrieved 2026-09-23

Requirements described here reflect 528 CMR 11.00 as adopted in Mass. Register #1534 (November 8, 2024), 271 CMR 3.00, and the Bureau's, Division's, and Department's published application pages as of October 2026. Fees and regulations are set by each agency and change without notice. Verify current requirements directly with the Office of Public Safety and Inspections, the Board of Examiners of Sheet Metal Workers, or the Department of Fire Services before relying on any figure in this guide.

Call 615-219-2110 or use Hire a Qualifying Agent to talk through getting a qualified individual in place for your Massachusetts mechanical company.