Oklahoma HVAC License Requirements
Yes. Oklahoma licenses HVAC technicians through the Oklahoma Construction Industries Board, Mechanical. It issues apprentice, journeyman and contractor credentials. Anyone who handles refrigerant also needs federal EPA 608 certification.
State HVAC license · By BrazeJobs Team · Updated
License tiers
| Apprentice | Registration |
| Journeyman | Mechanical Journeyman |
| Master | No state license |
| Contractor | Mechanical Contractor (journeyman reqs + 1 year) |
Requirements
| Journeyman experience | 3 years (or education routes) |
| Exam | State exam |
| Minimum age | 18 |
| Continuing education | 6 hours per 36 months |
| Local license | No (state license covers) |
| Board | Oklahoma Construction Industries Board, Mechanical |
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.
Exam
| Exam provider | PSI (for Construction Industries Board) |
| Format | Open book |
| Bulletin date | 2026-09-11 |
Mechanical exam rows not parsed from the bulletin text.
- Source: oklahoma.gov · checked November 6, 2026
Apprenticeship
| Registering agency | U.S. Department of Labor Office of Apprenticeship (no state agency) |
Programs register through the Office of Apprenticeship; use the Partner Finder for local sponsors.
- Source: apprenticeship.gov · checked November 6, 2026
Mechanical code
| Code in force | 2024 IMC with state amendments |
OUBCC permanent rule effective Sep 14, 2026 (replaced 2018 IMC).
- Source: oklahoma.gov · checked November 5, 2026