Massachusetts Office of Public Safety and Inspections · checked 2026-10-20
Massachusetts HVAC License Requirements
Refrigeration technician license issued by the Office of Public Safety and Inspections; apprentices work under a refrigeration apprentice license. Refrigeration Technician: 3 years of experience at minimum, plus an exam.
- 1RT · Refrigeration Technician 3 years
License levels in Massachusetts
Massachusetts has one credential on this path: the Refrigeration Technician. The source counts experience in hours and classroom instruction separately; the "time from start" column turns those hours into full-time years at 2,000 hours a year.
| Level | Experience | Classroom | Time from start | Exam | Fees |
|---|---|---|---|---|---|
| RT Refrigeration Technician | 6,000 hours | 450 h | 3 years | Yes | Application $75 |
Refrigeration Technician (RT)
Not less than 6,000 hours in Massachusetts as a licensed OPSI refrigeration apprentice and not less than 450 hours of study at a Bureau-approved school. Source: Mass.gov, Apply for a Refrigeration Technician License.
Exam
1 of the 1 level listed here requires an exam: Refrigeration Technician. The source does not print a pass mark. No passing score is printed; scores post to the OPSI website within about one week, and a failed candidate reapplies.
Fees
- Refrigeration Technician: application $75.
Reciprocity
An equivalent license from another jurisdiction plus employer documentation of equivalent experience under 528 CMR 11.03 can qualify, with approval by a majority vote of the Bureau. Source: Mass.gov, Apply for a Refrigeration Technician License.
How Massachusetts compares
Among the 8 states on this site that state a minimum time to the top hvac credential, Massachusetts ranks 2 of 8 from shortest (1 year) to longest (5 years). Michigan sets the same 3 years. The classroom requirement here peaks at 450 hours.
Same trade elsewhere: Connecticut · New Hampshire · California · Texas · Florida. All states side by side: HVAC license requirements by state.
Other trades in Massachusetts
- Electrician: Master Electrician: 5 years of experience at minimum, plus an exam.
- Plumber: Master Plumber: 5 years of experience at minimum, plus an exam.
- General contractor: Unrestricted Construction Supervisor: 3 years of experience at minimum, plus an exam.
All covered trades on one page: Massachusetts trade licenses.
Background reading: From apprentice to master: how long each state takes · What the license fees add up to.
Questions
Who issues the hvac license in Massachusetts?
Massachusetts Office of Public Safety and Inspections (Bureau of Pipefitters, Refrigeration Technicians and Sprinkler Fitters). Refrigeration technician license issued by the Office of Public Safety and Inspections; apprentices work under a refrigeration apprentice license.
How long does it take to qualify for the Refrigeration Technician in Massachusetts?
3 years by this site's count. Not less than 6,000 hours in Massachusetts as a licensed OPSI refrigeration apprentice and not less than 450 hours of study at a Bureau-approved school.
Does Massachusetts have hvac license reciprocity?
An equivalent license from another jurisdiction plus employer documentation of equivalent experience under 528 CMR 11.03 can qualify, with approval by a majority vote of the Bureau.
What are the Massachusetts hvac license fees?
Refrigeration Technician: application $75.
Sources and last checked
| What | Source | Checked |
|---|---|---|
| Issuing authority | Massachusetts Office of Public Safety and Inspections (Bureau of Pipefitters, Refrigeration Technicians and Sprinkler Fitters) | 2026-10-20 |
| RT requirements | Mass.gov, Apply for a Refrigeration Technician License | 2026-10-20 |
| Law cited | 528 CMR 11.03 | 2026-10-20 |
This page summarises what the Massachusetts source said on 2026-10-20. It is general information, not legal advice; the board's own page and the statute are the authority and can change. Confirm with Massachusetts Office of Public Safety and Inspections before applying. The free official route is the board itself: its page, application forms and staff answer eligibility questions.