SPEC SHEET · OK · HVAC
Oklahoma HVAC technician license requirements
The answer
Oklahoma licenses HVAC statewide as Mechanical Journeyman licenses: HVAC/R Limited (cooling ≤25 tons, heating ≤500,000 BTU/h) and HVAC/R Unlimited. Qualify with 3 years of verifiable experience in the category — approved schooling substitutes on a sliding scale (1,000 classroom hours = 2 of the 3 years) — then pass the exam.Your paths to the license
Apprentice → 3 years → journeyman
Register as a mechanical apprentice and work 3 verifiable years for a licensed mechanical contractor in your category (residential/commercial/industrial), then pass the category exam.
School credit sliding scale
Committee-approved programs substitute for experience: 1,000+ classroom hours + 1 year experience, 500+ hours + 2 years, down to 250+ hours + 2.5 years. An associate's degree counts at the top tier.
Military mechanical experience
Equivalent verifiable U.S. military mechanical-trade experience qualifies.
Out-of-state mechanical license
A current, good-standing out-of-state license in the same mechanical classification (earned on equivalent qualifications) makes you exam-eligible in Oklahoma.
License levels in Oklahoma
| Level | What it takes | Fee |
|---|---|---|
| Registered Mechanical Apprentice | Register with CIB; work under licensed supervision. | — |
| HVAC Limited Journeyman | Cooling ≤25 tons / heating ≤500,000 BTU/h + sheet metal, gas piping and refrigeration; 3 years experience + exam. | — |
| HVAC Unlimited Journeyman | Any size system; 3 years experience + exam. | — |
| Mechanical Contractor | Business license above journeyman. | — |
Published fees
| Item | Amount |
|---|---|
| Application / exam / license | Per the current CIB application |
The exam
| Provider | CIB third-party testing vendor |
| Fees | See the CIB application for current fees |
Moving here with a license? Renewal? The rest of the picture
Reciprocity: No named mechanical reciprocity — out-of-state licensees in the same classification get exam eligibility. Check your exact state pair →
Renewal & continuing education: Renew via CIB; CE per current CIB mechanical rules.
Federal layer: EPA Section 608 certification is required federally for refrigerant work — separate from the CIB license.
Watch out: Pick Limited vs Unlimited by the equipment you'll work on (25-ton / 500,000 BTU/h line). · Ground-source piping and medical gas need special certifications.
Official sources for this page
Oklahoma HVAC technician licensing FAQ
How many hours do you need to become a licensed HVAC technician in Oklahoma?
Oklahoma licenses HVAC statewide as Mechanical Journeyman licenses: HVAC/R Limited (cooling ≤25 tons, heating ≤500,000 BTU/h) and HVAC/R Unlimited. Qualify with 3 years of verifiable experience in the category — approved schooling substitutes on a sliding scale (1,000 classroom hours = 2 of the 3 years) — then pass the exam.
What does the Oklahoma HVAC technician license cost?
See the CIB application for current fees. Fee amounts are published on the current official application — see the sources below.
Does Oklahoma have HVAC technician license reciprocity?
No named mechanical reciprocity — out-of-state licensees in the same classification get exam eligibility.
How often does the license renew?
Renew via CIB; CE per current CIB mechanical rules.
Get your personal route
Four questions — your experience and training matched against Oklahoma's actual routes.