Illinois to Massachusetts: master HVAC technician license reciprocity
Illinois does not issue a statewide master HVAC technician license, so there is nothing to transfer. Here is Massachusetts's standard path for out-of-state applicants.
Your origin state does not issue a statewide license at this level, so there is no license to transfer. The destination's standard out-of-state path is shown; expect to meet it in full.
Reference only, not legal advice. Rules change; confirm with the licensing board before you apply. Full disclaimer.
Refrigeration Contractor by examination with out-of-state license credit (all states)
Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.
A master HVAC technician or HVAC/refrigeration contractor licensed in any other state applies to OPSI for the Refrigeration Contractor examination online through the My License portal or by mail. The Massachusetts prerequisites are 2,000 hours held and used under a Massachusetts Refrigeration Technician license plus 100 hours of post-apprenticeship refrigeration training at an approved school; the application form lets the applicant instead certify 'I held and used a refrigeration license in another jurisdiction for not less than 2000 hours' and that the 100 hours of additional training were taken at an institution in another jurisdiction, with employer and school documentation, and states that such an application may be forwarded to the Bureau, which may allow the candidate to sit for the examination. Under 528 CMR 11.07(1) the Bureau decides whether the out-of-state license and its underlying experience and education are substantially equivalent and may grant partial credit or deny the petition. The applicant also submits proof of age (18+) and a 2x2 photo with the $150 non-refundable fee, is notified about four to eight weeks after receipt, and must pass the contractor exam at 70% (a failing candidate reapplies). The exam is not waived for any state because the Bureau has no reciprocity agreement; the license renews for $75.
528 CMR 11.03 states the master prerequisite as 2,000 hours 'as a Massachusetts Journeyman Refrigeration Technician', while the Bureau's own contractor application accepts 2,000 hours under a refrigeration license from another jurisdiction if the Bureau agrees; the form governs in practice but the outcome is at the Bureau's discretion. Whether the Bureau would instead require the applicant to obtain the Massachusetts Refrigeration Technician license first was not confirmed from an official page. No separate business or law examination is published for this license. The contractor how-to page and form list only the $150 application fee; any exam fee or initial license fee after passing was not confirmed. The 42-day timeline reflects the published four-to-eight-week notification window.
At a glance
- Trade exam
- Required
- Law / code exam
- Not required
- Out-of-state hours
- Count toward eligibility
- Typical processing
- About 42 days
What you must already have
- Your Illinois license must be active and in good standing.
- You must document at least 2,000 hours of qualifying work experience.2,000 hours held and used under a refrigeration technician-level license, documented by the employer; out-of-state hours are subject to the Bureau's substantial-equivalence review (528 CMR 11.07).
- 100 hours of additional (post-apprenticeship) refrigeration training from an approved school, or an equivalent course at an institution in another jurisdiction, documented by the school
- At least 18 years of age; Bureau approval to sit for the examination on out-of-state credentials
What you'll do to get licensed in Massachusetts
- 1Application fee. Pay the application fee ($150). Non-refundable Refrigeration Contractor application fee, payable to the Commonwealth of Massachusetts (Valor Act reductions for military).
- 2Other. Employer documentation of the 2,000 hours, school documentation of the 100-hour training, proof of age and a 2x2 passport-style photo (or RMV photo release).
- 3Trade exam. Pass the destination's trade exam. Massachusetts Refrigeration Contractor (Master Refrigeration Technician) examination administered by OPSI; 70% or better required; a failing candidate must reapply.
- 4Other. EPA Section 608 technician certification (Universal) to handle refrigerants; required of every Massachusetts refrigeration technician under 528 CMR 11.03 and federal law; does not expire.
Published fees on this path total $150, excluding exam-vendor fees, bonds, and insurance.
What you'll need to buy or arrange
Exam preparation
Most boards contract PSI, Prov, or ICC for exams. Check which code edition the exam is written to before buying a prep course.
- Trade exam
- Other
How Massachusetts licenses master HVAC technicians
Massachusetts master HVAC technician · “Refrigeration Contractor (Master Refrigeration Technician)”
Statewide license
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.
Why Illinois has nothing to transfer
Illinois master HVAC technician
Licensed by cities and counties
Illinois does not issue a statewide master HVAC or mechanical contractor license and has no state mechanical board; the master-level credential exists only at the municipal level under names that vary by city. Springfield issues a Mechanical License to individuals who document 5 years (residential) or 7 years (commercial) of practical mechanical experience and pass the ICC National Standard Master Mechanical exam (G29); Peoria licenses HVAC contractors on an ICC contractor certificate from the 2018 code cycle or newer ($150 a year); Aurora and Elgin accept the ICC Master Mechanical certification or, in Elgin, a license from any Illinois city that gives a written exam; unincorporated Cook County registers HVAC contractors for a fee with $1,000,000 in liability insurance; and Chicago has no mechanical license at all, requiring a general contractor license to pull permits. None of these jurisdictions publishes a reciprocity or endorsement path for another state's master HVAC license; Springfield's only grandfather clause is limited to licenses issued before October 2007. A master HVAC contractor arriving from another state should expect to pass the ICC Master Mechanical exam once and then license or register separately in each municipality where they will work. EPA Section 608 certification applies to anyone handling refrigerants.
How local licensing works in Illinois
How local licensing works. Illinois has no state HVAC license. Each municipality licenses or registers mechanical contractors under its own ordinance; the ICC National Standard Master Mechanical exam (G29, formerly W29; residential W32) is the common denominator among testing cities.
Chicago. No HVAC or mechanical contractor license. Contractors obtain a General Contractor license from the Department of Buildings in Class A (unlimited project value, $3,500), B ($1,800), C ($1,300), D ($900) or E (projects up to $500,000, $300), each valid one year, with commercial general liability insurance from $1 million per occurrence (Class E) to $5 million (Class A) and a financial solvency statement, administered through Continental Testing Services; no trade exam.
Springfield. The Building and Zoning Department issues a person-held Mechanical License: Residential requires 5 years of practical experience in all types of mechanical work approved by the Mechanical Commission and proof of passing the ICC Master Mechanical Exam G29; Commercial requires 7 years and the same exam. Mechanical contractors also register with the city. A contractor licensed in another Illinois or out-of-state municipality with reciprocal testing may substitute that test only if the license was issued before 10/7/2007 (10/10/2007 in the earlier memo) and never lapsed; all others pass the ICC exam. Passing the exam does not itself guarantee a license.
Peoria. HVAC contractors must be licensed or registered ($150 non-refundable, calendar year) with an ICC contractor test certificate from the 2018 or newer code cycle; holders of current Normal or Pekin licenses register without retesting. Only the licensed contractor may pull permits and must attend inspections.
Aurora. Accepts a current ICC Master Mechanical certification (N29) in lieu of municipal testing; requires a certificate of insurance naming the City of Aurora as primary and non-contributory additional insured; registration through Development Services.
Elgin. Requires a mechanical contractor's license from any Illinois city that gives a written examination, or proof of passing the ICC Master Mechanical G29 exam, plus a $20,000 license and permit bond; the license is not required when an Illinois-licensed architect or engineer seals the plans and accepts responsibility.
Unincorporated Cook County. HVAC contractors register as 'all other trades' with the Department of Building and Zoning: $150 initial and $75 annual per trade, $1,000,000 general liability insurance naming the department; no exam.
Not verified. Naperville's contractor registration page was blocked when opened for this entry; Rockford publishes only electrical registration rules.
Out-of-state holders. None of these jurisdictions publishes reciprocity or endorsement for another state's master HVAC or mechanical license. The practical route is to pass the ICC National Standard Master Mechanical exam (accepted by Springfield, Peoria, Aurora and Elgin), then license or register in each municipality where work will be performed, and obtain a Chicago general contractor license for work in Chicago.
Common questions
- Do I have to take the Massachusetts master HVAC technician exam if I'm licensed in Illinois?
- Yes. Massachusetts requires the trade exam on this path.
- What does it cost to get a Massachusetts master HVAC technician license from Illinois?
- Published fees on this path total $150, not counting exam vendor fees or bonds.
- Do my Illinois work hours count in Massachusetts?
- Yes. Documented out-of-state experience counts toward Massachusetts's eligibility requirements.
- How long does the application take?
- The board's published or typical processing time is about 42 days.
- Does it work the other way, from Massachusetts to Illinois?
- Not necessarily. Reciprocity is directed. Going from Massachusetts to Illinois, the mechanism is not applicable.
Sources
- EPA Section 608 Technician Certification Requirements · 40 CFR Part 82, Subpart F (Clean Air Act §608) · U.S. Environmental Protection Agency · Other · verified September 15, 2026Federal requirement in every state: technicians who maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere must be certified (Type I small appliances, Type II high-pressure, Type III low-pressure, Universal). Apprentices under direct supervision are exempt. Certification does not expire; the core exam must be proctored for Universal certification. State HVAC boards commonly require it before licensure, but it is not itself a state license.
- 528 CMR 11.00 - Prerequisites for Examinations for Pipefitters, Refrigeration Technicians and Sprinkler Fitters (Mass. Register #1534, 11/08/2024) · 528 CMR 11.03, 11.07 · Massachusetts Bureau of Pipefitters, Refrigeration Technicians and Sprinkler Fitters · Admin Rule · verified September 15, 202611.03: no person shall work in refrigeration unless licensed under M.G.L. c. 146, § 85. Journeyman Refrigeration Technician: high-school graduate or equivalent; for applications received before November 9, 2026, one of three combinations (250 hours of study plus 6,000 apprentice work hours; 500 plus 4,000; 1,000 plus 2,000); for applications on or after November 9, 2026, 'a formal 450 hour course of study in a refrigeration education course approved by the Bureau' plus a minimum of 6,000 clock hours as a validly licensed Refrigeration Apprentice; all must hold 'an EPA Section 608 Universal certification'; employers verify hours; candidates must answer 70% or more of the exam questions correctly. Master Refrigeration Technician/Contractor: 2,000 hours of work experience as a Massachusetts Journeyman Refrigeration Technician and 100 hours of Bureau-approved education; 70% on the exam; contractors must display license numbers on vehicles and invoices. 11.07(1) Credentials from outside Massachusetts: an applicant holding a similar license in another state or country 'may submit to the Bureau a written request petitioning that such license, including experience or education obtained for said license, be considered for approval as being substantially equivalent to the experience and education requirements required in Massachusetts'; the Bureau may grant the request in whole or part or deny it, and without special approval gives no credit for work in unlicensed jurisdictions or licenses from jurisdictions without formal education requirements. Verbatim: 'Unless Massachusetts has a reciprocity agreement with the relevant jurisdiction authorizing licensure without examination, all applicants will be required to pass the relevant examination for the license being sought.' 11.07(4): no work-experience credit for any period without a valid Bureau license. Opened on 2026-09-15 through the r.jina.ai proxy.
- Mass.gov - Apply for an Oil Burner Technician or Apprentice Certificate (Department of Fire Services) · 527 CMR 1.00 · Massachusetts Department of Fire Services · Agency Page · verified September 15, 2026The Oil Burner Technician certificate, issued by the Department of Fire Services (not OPSI), permits the holder to 'service, install and repair oil burners that burn fuel oil and associated equipment'; $75 new / $50 renewal; apprentice $40 / $20; written exam required for the technician certificate. Cited only to show the adjacent heating-side license; it is not an HVAC license. Opened on 2026-09-15 through the r.jina.ai proxy.
- MGL Chapter 146, Section 81 - Definitions (pipefitters, refrigeration technicians, sprinkler fitters) · M.G.L. c. 146, § 81 · Massachusetts General Court · Statute · verified September 15, 2026'Journeyman refrigeration technician': any person who has completed an apprenticeship training program satisfactory to the bureau and has passed a refrigeration technician's examination. 'Master refrigeration technician': a person having a regular place of business who, alone or with master or journeyman refrigeration technicians or apprentices in his employ, performs refrigeration work. Refrigeration work covered by the chapter is the installation, repair, replacement or maintenance of any refrigerant-containing part of a refrigerant system of ten-ton capacity or greater. 'Refrigeration apprentice': a registered person at least 18 working under a master or journeyman. The statute does not use the title 'refrigeration contractor'; that is the Bureau's name for the master license.
- MGL Chapter 146, Section 85 - Applications for licenses; fees; expiration · M.G.L. c. 146, § 85 · Massachusetts General Court · Statute · verified September 15, 2026Applications are filed with the Office of Public Safety and Inspections of the Division of Occupational Licensure on its form; fees are set annually by the commissioner of administration (no amounts in the statute); licenses are valid statewide, non-transferable, and expire on a birth-date cycle; a license expired for more than one year requires re-examination. No licensure-without-examination provision for refrigeration.
- MGL Chapter 146, Section 86 - Classification and limitation of refrigeration licenses · M.G.L. c. 146, § 86 · Massachusetts General Court · Statute · verified September 15, 2026Verbatim: 'A license for a refrigeration technician, refrigeration contractor or a refrigeration trainee shall be classified and limited as to the maximum size of the refrigerating system with which the applicant is familiar in installing or servicing ... provided, however, that any person may make application for and, if found to be qualified, receive a license to engage in the installation and servicing of all sizes of refrigerating systems.'
- Mass.gov - Apply for a Refrigeration Contractor License · Massachusetts Office of Public Safety and Inspections · Agency Page · verified September 15, 2026The Refrigeration Contractor license lets the holder establish a business and employ licensed technicians. Requires a 2x2 photo (or RMV photo release) and documentation from an approved school of 100 hours of additional refrigeration training. Non-refundable $150 application fee; Valor Act reductions. Filed online through the My License portal or by mail to the Division of Occupational Licensure, One Federal Street, Suite 600, Boston; email notification about 4 to 8 weeks after receipt; exam scores post on the OPSI website within about a week; a failing candidate must reapply. The page does not address out-of-state applicants or reciprocity. Opened on 2026-09-15 through the r.jina.ai proxy.
- Mass.gov - Bureau of Pipefitters, Refrigeration Technicians, and Sprinkler Fitters · Massachusetts Office of Public Safety and Inspections, Division of Occupational Licensure · Agency Page · verified September 15, 2026The Bureau 'is responsible for examining qualified candidates for licensure as pipefitters, refrigeration technicians, and sprinkler fitters', investigates incidents and prosecutes violations; it sits within the Office of Public Safety and Inspections (OPSI) of the Division of Occupational Licensure. Links to the apply/renew page. No general HVAC license is listed anywhere on the Bureau's pages. Opened on 2026-09-15 through the r.jina.ai text-extraction proxy; mass.gov refuses direct requests from automated clients.
- Mass.gov - Apply for or Renew a Pipefitters, Refrigeration Technician or Sprinkler Fitters License · Massachusetts Office of Public Safety and Inspections · Agency Page · verified September 15, 2026Lists the Bureau's licenses: Apprentice Refrigeration, Refrigeration Technician and Refrigeration Contractor; Apprentice, Journeyman and Master Pipefitter; and the sprinkler fitter licenses, each with its how-to page. Shows no fee amounts. Opened on 2026-09-15 through the r.jina.ai proxy.
- Massachusetts OPSI - Refrigeration Contractor Application (form) · Massachusetts Office of Public Safety and Inspections · Form · verified September 15, 2026Prerequisites: has 'held and used a Massachusetts Refrigeration Technician license for not less than 2,000 Hours' and completed '100 Hours of additional Refrigeration training' post-apprenticeship; proof of age 18+. The form offers the alternative certifications 'I held and used a refrigeration license in another jurisdiction for not less than 2000 hours' and 'I received 100 hours of additional training (post apprenticeship) at an institution in another jurisdiction', and states that such an application 'MAY be forwarded to the Bureau of Pipefitters, Refrigeration Technicians and Sprinkler Fitters who may allow the candidate to sit for examination.' $150 non-refundable processing fee payable to the Commonwealth of Massachusetts; employer documentation of the 2,000 hours and school documentation of the 100 hours. Opened on 2026-09-15 through the r.jina.ai proxy.
- Mass.gov - Renew your Pipefitter, Refrigeration Technician, or Sprinkler Fitter License · Massachusetts Office of Public Safety and Inspections · Agency Page · verified September 15, 2026Renewal fees: apprentice $20, journeyman/technician $50, master/contractor $75; renewal notices are sent 60 days before expiration; apprentices are limited to two renewals unless approved. No continuing-education requirement is stated. Opened on 2026-09-15 through the r.jina.ai proxy.
Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.