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HVAC license requirements by state and province
Who licenses hvac technicians in each jurisdiction and which license levels exist. Open a row for exam, hours, fees, renewal and reciprocity details with quotes from the official pages.
| Jurisdiction | Licensing authority | Statewide license? | License levels (from source) |
|---|---|---|---|
| Alabama | See page | — | Not verified yet |
| Alaska | See page | — | Not verified yet |
| Arizona | Arizona Registrar of Contractors licensing: 877.692.9762. | — | R-39 Air Conditioning and Refrigeration, Including Solar: comfort air conditioning, refrigeration, evaporative cooling, ventilating and heating. |
| Arkansas | See page | — | Not verified yet |
| California | Contractors State License Board (CSLB), phone (800) 321-CSLB (2752). | California CSLB contractor license (e.g. C-20 HVAC) required for contract work valued at $1,000 or more (labor + materials), or work needing a building permit or using employees. | Not verified yet |
| Colorado | See page | — | Not verified yet |
| Connecticut | See page | — | Not verified yet |
| Delaware | See page | — | Not verified yet |
| Florida | See page | — | State-certified license type: Certified Air Conditioning Contractor (CILB). |
| Georgia | See page | — | Conditioned Air Contractor Class 1 (restricted) and Class 2 (unrestricted). |
| Hawaii | See page | — | Not verified yet |
| Idaho | See page | — | Not verified yet |
| Illinois | See page | — | Not verified yet |
| Indiana | See page | — | Not verified yet |
| Iowa | See page | — | Not verified yet |
| Kansas | See page | — | Not verified yet |
| Kentucky | See page | — | Not verified yet |
| Louisiana | See page | — | Not verified yet |
| Maine | See page | — | Oil Burner / Solid Fuel Technician: Apprentice, Journeyman, Master. |
| Maryland | See page | — | Not verified yet |
| Massachusetts | See page | — | Not verified yet |
| Michigan | See page | — | Not verified yet |
| Minnesota | See page | — | Not verified yet |
| Mississippi | See page | — | Not verified yet |
| Missouri | See page | — | Not verified yet |
| Montana | See page | — | Not verified yet |
| Nebraska | See page | — | Not verified yet |
| Nevada | See page | — | Not verified yet |
| New Hampshire | See page | — | Not verified yet |
| New Jersey | See page | — | Not verified yet |
| New Mexico | See page | — | Not verified yet |
| New York | See page | — | Not verified yet |
| North Carolina | Board Exam Coordinator: 984-884-5753. | — | Not verified yet |
| North Dakota | See page | — | Not verified yet |
| Ohio | See page | — | OCILB issues state contractor licenses, also called Master Licenses, for electrical, HVAC, plumbing, hydronics and refrigeration. |
| Oklahoma | See page | — | Not verified yet |
| Oregon | See page | — | Not verified yet |
| Pennsylvania | See page | — | Not verified yet |
| Rhode Island | See page | — | Not verified yet |
| South Carolina | See page | — | Not verified yet |
| South Dakota | See page | — | Not verified yet |
| Tennessee | See page | — | Not verified yet |
| Texas | See page | Air conditioning, refrigeration and heating contractors need a TDLR license; ACR companies must employ an ACR contractor at each permanent location. | Not verified yet |
| Utah | See page | — | Not verified yet |
| Vermont | See page | — | Not verified yet |
| Virginia | See page | — | Not verified yet |
| Washington | See page | — | Not verified yet |
| West Virginia | See page | — | Not verified yet |
| Wisconsin | See page | — | Not verified yet |
| Wyoming | See page | — | Not verified yet |
| Alberta (CA) | See page | — | Not verified yet |
| British Columbia (CA) | See page | Refrigeration and Air Conditioning Mechanic is a Skilled Trades Certification (compulsory) trade in BC. | Not verified yet |
| Manitoba (CA) | See page | Refrigeration and air-conditioning mechanic is a compulsory certification trade. | Not verified yet |
| New Brunswick (CA) | See page | — | Not verified yet |
| Newfoundland and Labrador (CA) | See page | — | Not verified yet |
| Northwest Territories (CA) | See page | — | Not verified yet |
| Nova Scotia (CA) | See page | — | Not verified yet |
| Nunavut (CA) | See page | — | Not verified yet |
| Ontario (CA) | Skilled Trades Ontario: 647-847-3000, toll-free (Ontario) 1-855-299-0028. | Compulsory trade: you must hold a Registered Training Agreement, Provisional Certificate of Qualification or Certificate of Qualification to practise. | Not verified yet |
| Prince Edward Island (CA) | See page | — | Not verified yet |
| Quebec (CA) | CCQ customer service: 1 888 842-8282. | — | CCQ journeyperson route for holders of a MTESS qualification certificate (electrician, refrigeration systems, plumbing, heating). |
| Saskatchewan (CA) | See page | — | Not verified yet |
| Yukon (CA) | See page | — | Not verified yet |
Extracted from official licensing-board pages; items that could not be matched to a quote on the source page are marked “unverified” on each detail page. Rules change; always confirm with the board.