South Dakota to Massachusetts: master HVAC technician license reciprocity
South Dakota 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. The Bureau's published materials do not say whether it may instead require the applicant to obtain the Massachusetts Refrigeration Technician license first. No separate business or law examination is published for this license. The contractor how-to page and form list only the $150 application fee; no separate exam fee or initial license fee is published.
At a glance
- Trade exam
- Required
- Law / code exam
- Not required
- Out-of-state hours
- Count toward eligibility
What you must already have
- Your South Dakota 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 South Dakota has nothing to transfer
South Dakota master HVAC technician
Licensed by cities and counties
South Dakota does not issue a master HVAC, mechanical or refrigeration license and has no state board for the trade; only the State Fire Marshal's boiler inspection program exists at state level, and it certifies boilers, not installers. The master-level credential exists only in cities that license mechanical contracting. In Sioux Falls the person-held credential is the Master Mechanic, earned by documenting four years of experience (2,000 hours per year) with a licensed mechanical contractor and passing the city's four-hour open-book exam on the International Mechanical and Fuel Gas Codes ($75, 75% to pass); the master mechanic then qualifies a Mechanical Contractor license ($200 for two years, $10,000 compliance bond, liability insurance), and a separate Refrigeration Contractor license is earned by a shorter IMC exam. In Rapid City the Mechanical Contractor (Class C trade) license is issued to a firm whose designated license holder has six years of verifiable experience, passes the city exam, and carries $1,000,000 liability insurance; it runs three years with six hours of continuing education. Neither city recognizes out-of-state licenses: Sioux Falls says it does not reciprocate any license and requires its exam of everyone, and Rapid City's code recognizes other agencies' licenses only for general building contractor classes. An out-of-state master or HVAC contractor should expect to sit the local exam in each city where they contract.
How local licensing works in South Dakota
How local licensing works. South Dakota has no state HVAC licensing statute, so contractor and master-level credentials exist only under city ordinances. Boilers are inspected and certificated by the State Fire Marshal's Office (Department of Public Safety), which does not license installers or contractors.
Sioux Falls. The Mechanical Board of Appeals and Examiners tests Master Mechanics: four years of experience as a sheet metal mechanic, refrigeration technician, general manager, project manager or engineer employed by a licensed mechanical contractor, at least 2,000 hours per year, with up to one year of credit for trade school or engineering/construction management degrees and up to two years for military work. The exam ($75, non-refundable) is given the second Wednesday of each month, is open book on the 2021 IMC and IFGC (2024 codes to be adopted in 2026), and requires 75%; a first failure may be retaken after 30 days, later failures after 90 days. The Mechanical Contractor license must be applied for within 90 days of passing: $200 for a two-year license expiring December 31 of odd years ($100 if issued in the second year), a $10,000 compliance bond naming the City, current liability insurance, and the master mechanic must be an owner, partner or W-2 employee. The Refrigeration Contractor license uses a separate two-hour, 20-question IMC exam ($75, 75%) with the same bond and fee. An Inactive Master Mechanic license preserves the credential without contracting. The city states it does not reciprocate any licenses.
Rapid City. Under RCMC 15.26.080 a Mechanical Contractor (MC) license is held by a proprietorship, partnership, firm or corporation whose license holder has six years of verifiable experience (education credit of one year per 18-24 month program) and is qualified in planning, superintending and installing mechanical systems; if that person leaves, the firm has 30 days to qualify another. Under RCMC 15.04.140 the designated license holder must pass the city's exam, the firm must carry $1,000,000 aggregate and per-occurrence liability with $300,000 fire damage coverage, the license runs three years, and six hours of continuing education are required per period. License and exam fees are set by council resolution and were not found on a published page. The Building Official may accept another government agency's license only for Class A and B general building licenses.
Out-of-state holders. No reciprocity or endorsement path for out-of-state master or contractor licenses was found in either city. The practical route is to document experience, pass the local exam, and post the local bond and insurance in each city where work will be contracted.
Common questions
- Do I have to take the Massachusetts master HVAC technician exam if I'm licensed in South Dakota?
- Yes. Massachusetts requires the trade exam on this path.
- What does it cost to get a Massachusetts master HVAC technician license from South Dakota?
- Published fees on this path total $150, not counting exam vendor fees or bonds.
- Do my South Dakota work hours count in Massachusetts?
- Yes. Documented out-of-state experience counts toward Massachusetts's eligibility requirements.
- Does it work the other way, from Massachusetts to South Dakota?
- Not necessarily. Reciprocity is directed. Going from Massachusetts to South Dakota, 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, 2026
- 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 23, 2026
- 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, 2026
- MGL Chapter 146, Section 81 - Definitions (pipefitters, refrigeration technicians, sprinkler fitters) · M.G.L. c. 146, § 81 · Massachusetts General Court · Statute · verified September 23, 2026
- MGL Chapter 146, Section 85 - Applications for licenses; fees; expiration · M.G.L. c. 146, § 85 · Massachusetts General Court · Statute · verified September 23, 2026
- MGL Chapter 146, Section 86 - Classification and limitation of refrigeration licenses · M.G.L. c. 146, § 86 · Massachusetts General Court · Statute · verified September 23, 2026
- Mass.gov - Apply for a Refrigeration Contractor License · Massachusetts Office of Public Safety and Inspections · Agency Page · verified September 23, 2026
- 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, 2026
- 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, 2026
- Massachusetts OPSI - Refrigeration Contractor Application (form) · Massachusetts Office of Public Safety and Inspections · Form · verified September 23, 2026
- Mass.gov - Renew your Pipefitter, Refrigeration Technician, or Sprinkler Fitter License · Massachusetts Office of Public Safety and Inspections · Agency Page · verified September 23, 2026
Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.