Massachusetts doesn't issue a single "HVAC license." The state credential most HVAC professionals need is a Refrigeration license from the Division of Occupational Licensure (DOL) — required for refrigeration/AC work on systems over 10 tons — on top of the federal EPA Section 608 certification. (Ductwork falls under a separate Sheet Metal Workers license.) This guide covers the refrigeration license path: the three tiers, the experience-and-education options, fees, and the exam.
Is a Refrigeration License Required in Massachusetts?
Yes. A state refrigeration license is required to work on refrigeration/AC systems with a capacity greater than 10 tons, and the federal EPA Section 608 certification is required for anyone who handles refrigerants in equipment of any size. A technician working only on smaller systems may need only EPA certification; larger commercial/industrial work requires the state license.
Massachusetts Refrigeration License Tiers
Refrigeration Apprentice
The entry-level license, worked under the supervision of a licensed Technician or Contractor.
- Requirements: at least 18, a high school diploma or equivalent, a photo, and a Division of Apprentice Standards (DAS) ID. The apprentice must be licensed with the OPSI, registered with DAS, and employed by a Massachusetts Refrigeration Contractor.
Refrigeration Technician (journeyman equivalent)
Performs hands-on installation, service, and repair, and may supervise apprentices.
- Experience + education — one of three combinations: 6,000 hours + 250 classroom hours, or 4,000 hours + 500, or 2,000 hours + 1,000, in a Bureau-approved refrigeration course.
- Education baseline: high school diploma or equivalent.
- Federal certification: a valid EPA Section 608 Universal certification.
- Exam: pass the state Refrigeration Technician exam.
Refrigeration Contractor (master equivalent)
For those who own/operate a refrigeration business, bid and contract for work, employ licensed technicians, and pull permits.
- Additional training: 100 hours of additional refrigeration training (per the contractor application). The contractor page does not list a separate years/hours technician-experience requirement.
- Exam: pass the state Refrigeration Contractor exam.
EPA Section 608 Certification
Required for anyone who maintains, services, repairs, or disposes of equipment that could release covered refrigerants — Type I (small appliances), Type II (high-pressure), Type III (low-pressure), or Universal (all three). It is a federal prerequisite for the state license.
Application Process
- Meet the experience + education requirement for your tier (apprentice first, then technician).
- Pass the EPA 608 exam through a federally approved provider.
- Pass the state Refrigeration exam. After the Bureau approves your application, the OPSI mails a notice to appear; confirm the current exam provider, content, and fee with the Bureau.
- Submit your application to the Division of Occupational Licensure with your exam results, EPA card, experience documentation, education transcript, and high school diploma/equivalent.
- Pay the fee and receive your license once approved by the Bureau of Pipefitters, Refrigeration Technicians, and Sprinkler Fitters.
Fees
- Application: Apprentice $40, Technician $75, Contractor $150.
- Renewal: Apprentice $20, Journeyman/Technician $50, Master/Contractor $75.
- Exam fee: confirm the current amount with the testing provider.
Insurance for MA Refrigeration Contractors
The listed Division of Occupational Licensure sources do not set a general-liability or surety-bond minimum for the refrigeration contractor license itself. As a general matter, workers' compensation is required under Massachusetts law if you have employees. Confirm any project- or permit-specific insurance with the relevant authority.
Renewal
Massachusetts refrigeration licenses renew through the Division of Occupational Licensure, with the renewal fees listed above. The listed sources do not confirm the renewal-cycle frequency or any continuing-education requirement — confirm both with the Division before your renewal date.
Reciprocity
The listed sources support a pathway for a technician licensed in another jurisdiction to be considered for an equivalent Massachusetts license with the Bureau's majority approval, rather than broad automatic reciprocity. Confirm the current endorsement process and required documentation with the Bureau.