HVAC Technician License Requirements by State

Installs and services heating, cooling, and ventilation systems. This page compares hvac technician licensing requirements across all 50 US states and the District of Columbia. Every row links to the verified state page with statute citations, fees, exam scope, insurance, and renewal rules.

Published guides: 51
Exam pathways recorded: 37
Require surety bond: 12
Local / scope-specific: 13
Avg published experience: 3.3 yr

Comparison table — all 51 jurisdictions

Scroll horizontally on smaller screens. Use the sort control to compare low-fee states, high-bond states, or the jurisdictions with the heaviest published experience requirements. Click any state to open the verified license page.

13 of these published jurisdictions have no single statewide trade license; local and scope-specific rules may apply.

Sort table

State	License	Exam	Experience	Bond	Initial fee	Renewal	NASCLA	Time
Alabama State license	Alabama Certified Heating and Air Conditioning Contractor	Confirm with authority	—	$20,000	$220	1 yr	—	—
Alaska Mixed / scope-dependent	Alaska Mechanical Administrator License (HVAC Categories)	Confirm with authority	4 yr	$10,000	—	2 yr	—	Depends on the chosen category
Arizona State license	Arizona Air Conditioning and Refrigeration Contractor (C-39, R-39R, or CR-39)	Depends on pathway	4 yr	$2,500	$270	2 yr	—	Varies with examination completion
Arkansas State license	Arkansas HVACR Class A and Class B Contractor License	Confirm with authority	2 yr	—	$150	1 yr	—	The first-time experience requirement is at least two years
California State license	California Class C-20 — Warm-Air Heating, Ventilating and Air-Conditioning Contractor	Required	4 yr	$25,000	$200	2 yr	—	Varies with application review
Colorado Local / scope-specific	Colorado HVAC — local mechanical contractor licensing; EPA Section 608 where applicable	Depends on pathway	—	—	—	—	—	Local and certificate-specific
Connecticut State license	Connecticut S-2 Unlimited Heating, Piping and Cooling Journeyperson and S-1 Unlimited Contractor	Confirm with authority	4 yr	—	$120	1 yr	—	The S-2 apprenticeship benchmark is four years and 8
Delaware Mixed / scope-dependent	Delaware Master HVACR / Master HVACR Restricted License	Required	2 yr	—	—	2 yr	—	A complete application is reviewed on or before the next Board meeting
District of Columbia Mixed / scope-dependent	DC Refrigeration and Air-Conditioning Mechanic License	Required	5 yr	$5,000	$110	2 yr	—	Timing depends on DLCP review
Florida State license	Florida Certified Class A Air Conditioning Contractor (CAC)	Required	4 yr	—	$145	2 yr	—	Varies with examination scheduling
Georgia State license	Georgia Conditioned Air Contractor (Class I or Class II)	Required	4 yr	—	—	2 yr	—	—
Hawaii State license	Hawaii C-52 Ventilating and Air Conditioning Contractor	Depends on pathway	4 yr	—	—	2 yr	—	The contractor Board reviews complete applications before PSI registration
Idaho State license	Idaho Journeyman HVAC and HVAC Contractor	Required	4 yr	$2,000	$225	3 yr	—	Journeyman: generally four years through the published apprenticeship route
Illinois Local / scope-specific	Illinois HVAC — No State License; Municipal Rules and EPA Section 608	No statewide exam	—	—	—	—	—	No statewide HVAC-license timeline
Indiana Local / scope-specific	Indiana HVAC — Local Contractor Requirements and Federal Section 608	No statewide exam	—	—	—	1 yr	—	There is no statewide HVAC contractor licensing timeline
Iowa State license	Iowa Master HVAC/Refrigeration License and Contractor License	Required	2 yr	$5,000	$240	3 yr	—	—
Kansas State license	Kansas HVAC Contractor — City and County Licensure	Depends on pathway	2 yr	—	—	1 yr	—	Varies by experience verification
Kentucky State license	Kentucky Master HVAC Contractor (and Journeyman HVAC Mechanic)	Required	2 yr	—	$250	1 yr	—	At least two years of qualifying experience
Louisiana State license	Louisiana Mechanical or HVACR Contractor (LSLBC)	Required	—	—	$100	1 yr	—	Varies with financial/background review
Maine Local / scope-specific	Maine HVAC Contractor Requirements (No General State License; Fuel Board Credentials for Fuel Equipment)	No statewide exam	—	—	—	—	—	No general state HVAC license is required
Maryland State license	Maryland Master HVACR Contractor	Required	7 yr	—	—	2 yr	—	—
Massachusetts Local / scope-specific	Massachusetts HVAC — Refrigeration, Sheet Metal, Gas, Plumbing, and Oil-Burner Credentials	Required	—	—	—	1 yr	—	There is no universal HVAC timeline
Michigan State license	Michigan Mechanical Contractor License (HVAC Classifications)	Depends on pathway	3 yr	—	$300	3 yr	—	At least three years to satisfy the experience requirement
Minnesota Mixed / scope-dependent	Minnesota Mechanical Contractor Bond Filing (HVAC)	Required	—	$25,000	$100	2 yr	—	DLI processing time varies with completion of the bond packet
Mississippi State license	Mississippi HVAC Contractor License	Depends on pathway	—	—	$400	1 yr	—	—
Missouri Local / scope-specific	Missouri HVAC Contractor — City and County Licensing	Depends on pathway	—	—	—	1 yr	—	Local
Montana Local / scope-specific	Montana HVAC — No Standalone State Trade License	Confirm with authority	—	—	$70	1 yr	—	No state HVAC trade-license process exists
Nebraska Local / scope-specific	Nebraska HVAC — Local Certificate and Contractor Registration	Depends on pathway	—	—	—	1 yr	—	—
Nevada Mixed / scope-dependent	Nevada C-21 Refrigeration and Air-Conditioning Contractor	Depends on pathway	4 yr	—	$600	2 yr	—	Varies with completeness of experience
New Hampshire State license	New Hampshire Fuel Gas Fitter Specialty License (HVAC gas work)	Confirm with authority	1 yr	—	—	2 yr	—	Timing is specialty-specific
New Jersey State license	New Jersey Master HVACR Contractor License	Required	5 yr	$3,000	$160	2 yr	—	The Board reviews applications at monthly meetings
New Mexico State license	New Mexico MM-3 HVAC Contractor and Mechanical Journeyman Certificates	Required	4 yr	$10,000	—	2 yr	—	Varies with experience-affidavit approval
New York Local / scope-specific	New York HVAC — Local Requirements / NYC Oil Burner Equipment Installer	Required	—	—	$200	—	—	NYC does not publish a single end-to-end timeline
North Carolina State license	North Carolina Heating Contractor (Groups 1, 2, or 3)	Depends on pathway	2 yr	—	$150	1 yr	—	Varies
North Dakota State license	North Dakota HVAC Contractor — State Contractor License	No statewide exam	—	—	$100	1 yr	—	Depends on application completeness and Secretary of State processing.
Ohio Mixed / scope-dependent	Ohio HVAC Contractor (OCILB Commercial License)	Required	5 yr	—	$25	1 yr	—	Varies with experience records
Oklahoma State license	Oklahoma Mechanical HVAC/R Journeyman and Contractor License	Confirm with authority	3 yr	$5,000	—	1 yr	—	Timing depends on verified experience
Oregon Local / scope-specific	Oregon HVAC Contractor Requirements (CCB and Applicable BCD Electrical Licenses)	Required	—	—	—	2 yr	—	CCB timing depends on completing pre-license education
Pennsylvania Local / scope-specific	Pennsylvania HVAC — Local Licensing; No Statewide Trade License	Required	—	—	—	2 yr	—	Varies by municipality and application completeness.
Rhode Island Mixed / scope-dependent	Rhode Island Mechanical Trades: Pipefitter, Refrigeration, and Sheet Metal	Required	2 yr	—	—	2 yr	—	Class II apprenticeship routes require at least 4
South Carolina State license	South Carolina Commercial HVAC Contractor Requirements — Mechanical License	Depends on pathway	2 yr	—	—	2 yr	—	Timing depends on qualifying-party certification
South Dakota Local / scope-specific	South Dakota HVAC — No Standalone State Trade License	Confirm with authority	—	—	—	—	—	No statewide HVAC trade-license process exists
Tennessee State license	Tennessee CMC-C HVAC, Refrigeration and Gas Piping Contractor License	Depends on pathway	—	—	—	2 yr	—	Timing depends on testing availability
Texas State license	Texas Air Conditioning and Refrigeration Contractor License (Class A or Class B)	Required	4 yr	—	—	1 yr	—	Timing varies by application review
Utah State license	Utah H100 HVAC Contractor License	Required	2 yr	—	—	2 yr	—	Timing depends on completing the required 4
Vermont Local / scope-specific	Vermont HVAC Requirements (No General State HVAC License)	Confirm with authority	—	—	$75	2 yr	—	Depends on the actual scope: EPA testing
Virginia State license	Virginia Master HVAC Tradesman License	Required	1 yr	—	—	3 yr	—	Varies with DPOR application approval and PSI availability.
Washington State license	Washington Specialty Contractor — Heating and Air Conditioning	Depends on pathway	—	$15,000	—	2 yr	—	—
West Virginia Mixed / scope-dependent	West Virginia HVAC Technician License (Residential and Commercial)	Required	2 yr	—	$75	1 yr	—	Timing depends on 2
Wisconsin Mixed / scope-dependent	Wisconsin HVAC Contractor Registration and HVAC Qualifier Certification	Required	4 yr	—	$60	4 yr	—	The standard Qualifier route requires four years of eligible experience
Wyoming Mixed / scope-dependent	Wyoming HVAC Contractor — Local Mechanical License; State Electrical Scope	Confirm with authority	—	—	—	—	—	No statewide HVAC license timeline applies

National picture for hvac technician

Of the 51 jurisdictions currently published in this dataset, 37 record required or conditional examination pathways, 12 record a positive license-bond amount, and 0 record NASCLA acceptance. Among entries with a positive numeric experience threshold, the average recorded value is 3.3 years.

The comparison above is generated at build time directly from the state license entries on this site. Every value is traceable to the regulator's published rule. If you spot a discrepancy, the state page is the source of truth and will be re-verified against the official source set.

Choosing where to license first

Lowest barrier to entry: compare the recorded fee and examination pathway, then read the guide for local obligations and missing costs. A local-only label does not mean the work is unregulated.
Strongest reciprocity downstream: states marked NASCLA Accepted, because the same exam can unlock multiple jurisdictions later.
Lowest upfront cost: focus on combinations with the smallest initial fee and no bond requirement.
Fastest path to wallet card: compare the Time column, but remember that municipal programs can still involve multiple city registrations.

Related trades

Scope of work overlaps at the edges of every classification. Contractors researching hvac technician licensing often also need the comparison hub for these adjacent trades:

Local requirements and practical guides

Do Subcontractors Need a License? California, Tennessee, and Texas Examples
Learn why a prime contractor’s license may not cover a subcontractor, using California’s triggers, Tennessee’s trade thresholds, and Texas electrical rules.
How to Add a California Contractor License Classification
Prepare a California additional-classification application: scope selection, qualifier experience, the $230 fee, exams, fingerprints, and returned applications.
EPA Section 608 Certification vs. an HVAC Contractor License
Understand what EPA Section 608 certification covers, choose a certification type, find approved testing, replace a lost card, and separate state HVAC licensing.