Connecticut HVAC License Requirements
Yes. Connecticut licenses HVAC technicians through the CT DCP Heating, Piping, Cooling and Sheet Metal Work Board. It issues apprentice, journeyman and contractor credentials. A journeyman license takes 8,000 hours of work experience. Anyone who handles refrigerant also needs federal EPA 608 certification.
State HVAC license · By BrazeJobs Team · Updated
License tiers
| Apprentice | Registered apprentice |
| Journeyman | S-2 heating, piping & cooling journeyperson |
| Master | No state license (S-1 is contractor) |
| Contractor | S-1 unlimited contractor (2 years as journeyman); D-1/D-2 limited |
Requirements
| Journeyman experience | 8,000 |
| Classroom hours | Apprenticeship classroom |
| Exam | State exam |
| Renewal | Annual |
| Continuing education | Required |
| Local license | No (state license covers) |
| Board | CT DCP Heating, Piping, Cooling and Sheet Metal Work Board |
Federal: EPA 608 certification
| Rule | Federal certification required to service or dispose of refrigerant equipment and to buy refrigerant |
Who: anyone who maintains, services, repairs or disposes of equipment that could release refrigerant (attaching gauges, adding or removing refrigerant). Types: Type I (small appliances), Type II (high- and very high-pressure), Type III (low-pressure), Universal (all types). Expiry: credentials do not expire. Buying refrigerant: sellers may sell only to certified technicians or employers of one, with limited exceptions (e.g. small cans of MVAC refrigerant). EPA does not issue cards; approved certifying organizations do. Universal requires a proctored core exam.
Licensed in another state or the military
| Reciprocity | None (CT has no reciprocal agreements) |
- Source: portal.ct.gov · checked November 6, 2026
Apprenticeship
| Registering agency | State Apprenticeship Agency (Connecticut DOL) |
- Source: apprenticeship.gov · checked November 6, 2026
- Source: portal.ct.gov · checked November 6, 2026
Mechanical code
| Code in force | 2021 IMC with state amendments |
| Next edition | None |
2022 Connecticut State Building Code effective Oct 1, 2022. Proposed: 2026 Connecticut State Building Code, expected July 1, 2026 but delayed pending Legislative Regulation Review Committee approval