Arizona Registrar of Contractors (AZ ROC) administers HVAC contractor licensing in Arizona. Every figure below is verified against the board’s own official pages and dated. Who must personally hold a credential — the contractor, the business, or the individual worker — is set out under Requirements.
What it’s called
In Arizona the state HVAC credential is a CONTRACTOR license issued by the Registrar of Contractors (AZ ROC), not an individual HVAC-technician card. The HVAC classifications are numbered ‘-39’ (air conditioning and refrigeration), ‘-79’ (air conditioning and refrigeration including solar), ‘-58’ (comfort heating, ventilating and evaporative cooling), ‘-49’ (commercial/process refrigeration) and ‘-45’ (sheet metal / duct work), each issued in a Commercial (C-), Residential (R-) or Dual (CR-) form. The dual CR-39 (and CR-79 with solar) is the classification most residential-plus-commercial HVAC contractors seek; C-39 is the commercial-only and R-39 the residential-only version. A worker employed by a licensed contractor needs no individual state license (A.R.S. 32-1121(A)(11)). Separately, EPA Section 608 refrigerant-handling certification is a FEDERAL requirement, not an Arizona license. ‘HVAC license,’ ‘AC license,’ ‘air conditioning license,’ ‘C-39 license’ and ‘CR-39 license’ are common informal names for the AZ ROC air-conditioning-and-refrigeration contractor classifications.
License types & fees
| Type | Experience | Exam | Fee |
|---|---|---|---|
| CR-39 Air Conditioning and Refrigeration (Dual - residential and commercial) | The qualifying party must have at least 4 years' practical or management trade experience dealing specifically with air conditioning and refrigeration work, at least 2 of which must have been within the last 10 years (A.R.S. 32-1122(E)(1)). Accredited technical or manufacturer training may substitute for up to 2 of the 4 years, but no more. | Two exams, each requiring a score of at least 70%: the AZ Statutes and Rules Training Course and Exam (SRE, open-book, online through Gmetrix) and the trade-specific Air Conditioning and Refrigeration exam (online or at a PSI test center). The trade exam may be waived under A.A.C. R4-9-106(E) if the qualifying party was, within the preceding 5 years, a qualifying party for a licensee in Arizona or another state in the same or a comparable classification; the SRE cannot be waived. | Specialty Dual (CR) fees: $100 application fee + $380 license fee + $370 Residential Recovery Fund assessment = $850 to obtain (renewal is $380 license + $270 Recovery Fund = $650). Exam fees are separate and paid to the vendors: SRE $61 (Gmetrix) and trade exam $66 (PSI). A contractor's license bond is also required (see fees). This is the classification most residential-plus-commercial HVAC/AC contractors seek; it covers the scopes of the commercial C-39 and the residential R-39R. |
| C-39 Air Conditioning and Refrigeration (Commercial) | At least 4 years' practical or management experience in air conditioning and refrigeration, 2 of which within the last 10 years; up to 2 years may be accredited technical/manufacturer training (A.R.S. 32-1122(E)(1)). | SRE (Gmetrix, $61) + trade Air Conditioning and Refrigeration exam (PSI, $66), each 70% to pass; trade exam waivable under R4-9-106(E). | Specialty Commercial (C) fees: $100 application fee + $480 license fee = $580 to obtain; renewal $480 (no Residential Recovery Fund assessment for commercial). Plus exam fees and a contractor's license bond. Scope: install, alter and repair refrigeration and evaporative cooling, plus 'wet'/'dry'/radiant heating (boilers/coils to 30 PSIG hot water or 15 PSIG steam; gas-fired furnaces and space heaters), ventilation/duct work, controls, and water/gas piping from the service connection to the equipment served. |
| R-39 Air Conditioning and Refrigeration, Including Solar (Residential) | At least 4 years' practical or management experience in residential air conditioning and refrigeration, 2 of which within the last 10 years; up to 2 years may be accredited technical/manufacturer training (A.R.S. 32-1122(E)(1)). | SRE (Gmetrix, $61) + trade exam (PSI, $66), each 70% to pass; trade exam waivable under R4-9-106(E). | Specialty Residential (R) fees: $80 application fee + $270 license fee + $370 Residential Recovery Fund assessment = $720 to obtain; renewal $270 license + $270 Recovery Fund = $540. Plus exam fees and a contractor's license bond. Scope: install and repair comfort air conditioning including refrigeration, evaporative cooling, ventilating and heating, with or without solar; this classification includes all R-39R subclassifications. (Note: AZ ROC no longer accepts new applications for several legacy R-39R subclassifications - Gas Refrigeration, Temperature Control Systems, Warm Air Heating/Evaporative Cooling/Ventilating, Evaporative Cooling and Ventilators, and Pre-Coolers.) |
| CR-79 / C-79 / R-39 Air Conditioning and Refrigeration, Including Solar | Same 4-year experience standard (A.R.S. 32-1122(E)(1)), keyed to air conditioning, refrigeration and solar work. | SRE + trade exam, each 70%. | Dual CR-79: $850 new / $650 renewal (Specialty Dual). Commercial C-79: $580 new / $480 renewal (Specialty Commercial). Plus exam fees and bond. The '-79' classifications are the '-39' air-conditioning-and-refrigeration scopes expressly including solar heating equipment. |
| C-58 / CR-58 Comfort Heating, Ventilating and Evaporative Cooling | Same 4-year experience standard (A.R.S. 32-1122(E)(1)), in heating/ventilating/evaporative-cooling work. | SRE + trade exam, each 70%. | Commercial C-58: $580 new / $480 renewal. Dual CR-58: $850 new / $650 renewal. Plus exam fees and bond. Scope: warm-air heating, gas-fired furnaces and space heaters, ventilation and evaporative cooling - a heating/ventilating classification separate from the refrigeration/air-conditioning '-39' scope (no mechanical refrigeration/comfort cooling by refrigerant). |
| C-49 Refrigeration (Commercial - process/commercial refrigeration only) | Same 4-year experience standard (A.R.S. 32-1122(E)(1)), in commercial/industrial refrigeration. | SRE + trade exam, each 70%. | Specialty Commercial: $580 new / $480 renewal, plus exam fees and bond. Scope: install/alter/repair refrigeration equipment and systems for processing, storage and display of food and other perishables (commercial, industrial and manufacturing refrigeration) - this classification EXCLUDES comfort air conditioning. |
| C-45 / R-45 / CR-45 Sheet Metal (ductwork) | Same 4-year experience standard (A.R.S. 32-1122(E)(1)), in sheet metal work. | SRE + trade exam, each 70%. | Commercial C-45: $580 new / $480 renewal. Residential R-45: $720 new / $540 renewal. Dual CR-45: $850 new / $650 renewal. Plus exam fees and bond. Scope: sheet metal, duct work, metal flues, patented chimneys, gutters, metal roofing, etc. A separate specialty from the HVAC '-39'/'-58' classifications; relevant when a contractor fabricates/installs duct work as its own trade. |
Who does NOT need this license — exemptions
Arizona licenses HVAC as a CONTRACTOR classification through the Registrar of Contractors, and A.R.S. 32-1121 lists who is NOT required to hold a contractor’s license. The exemptions most relevant to HVAC, and their limits: (A)(14) THE $1,000 ‘CASUAL OR MINOR’ EXEMPTION (Arizona’s closest analogue to a handyman exemption): ‘Any person other than a licensed contractor engaging in any work or operation on one undertaking or project by one or more contracts, for which the aggregate contract price, including labor, materials and all other items … is less than $1,000. The work or operations that are exempt under this paragraph shall be of a casual or minor nature.’ It does NOT apply (a) ‘in any case in which the performance of the work requires a local building permit’; (b) where the work is only part of a larger or major operation, or where the operation is divided into contracts of less than $1,000 to evade the chapter; or (c) to a person who advertises without disclosing unlicensed status by including ’not a licensed contractor.’ (A)(4) MATERIALMAN/MANUFACTURER/RETAILER furnishing finished products/materials, where ’the total value of the sales contract or transaction involving such items and the cost of the installation … does not exceed $1,000,’ and the seller informs the purchaser that a licensed contractor may perform the installation. (A)(9) SALE/INSTALLATION OF FINISHED PRODUCTS not fabricated into and not a permanent fixed part of the structure - inapplicable if a local building permit is required, if the total price exceeds $1,000, or if removal causes material damage or renders the structure unfit. THE HVAC CARVE-BACK (subsection D): the $1,000 exemptions in (A)(4), (A)(9) and (A)(14) DO NOT APPLY to (D)(1) ‘all fire safety and mechanical, electrical and plumbing work that is done in connection with fire safety installation and fire safety maintenance and repair,’ nor to (D)(2) ‘all work done, including installing, maintaining and repairing devices, appliances or equipment, that involves connecting to any supply of natural gas, propane or other petroleum or gaseous fuel’ (this paragraph does not impact A.R.S. 36-1624.01). Because most HVAC changeouts either require a mechanical/building permit (defeating (A)(14) via subdivision (a)) or connect gas-fired equipment to a fuel supply (defeating the exemption via (D)(2)), the $1,000 exemption seldom reaches actual HVAC installation or replacement. (A)(5) OWNER-OCCUPANT: owners who improve their own property and do the work themselves, with their own employees, or with licensed contractors, where the structure is ‘intended for occupancy solely by the owner’ and ’not intended for sale or for rent’ - sale, rent, or offering for sale/rent within one year after completion or a certificate of occupancy is prima facie evidence the project was undertaken for sale or rent. (A)(6) OWNER-DEVELOPERS who build or improve structures for sale or rent and CONTRACT WITH a licensed general or specialty contractor whose name and license number appear in all sales documents. (A)(11) EMPLOYEES: ‘Any person who engages in the activities regulated by this chapter, as an employee of an exempt property owner or as an employee with wages as the person’s sole compensation’ - the carve-out that lets an HVAC technician work for a licensed contractor without an individual license, because Arizona licenses the contracting business/qualifying party rather than each technician. (A)(10) EMPLOYEES OF OWNERS or managing agents of condominiums, townhouses, cooperative units or apartment complexes of four units or less, repairing or maintaining structures they own or manage. Other statutory exemptions, not specific to HVAC: (A)(1) authorized government representatives; (A)(2) trustees of an express trust not formed to do contracting, and officers of a court; (A)(3) public utilities under Corporation Commission regulation, and owner/lessee petroleum-or-gas operations; (A)(7) architects/engineers hiring a contractor for preconstruction investigation (subsurface utility location, potholing, drilling for samples, locating existing building features); (A)(8) pest-management licensees under title 3, chapter 20; (A)(12) surety companies completing a bonded contract using licensed contractors; (A)(13) insurance companies performing casualty-loss repairs using licensed contractors; (A)(15) title 41, chapter 37, article 4 licensees; (A)(16) gardeners performing lawn, garden, shrub and tree maintenance; (A)(17) alarm agents (A.R.S. 32-101); (A)(18) cable/satellite/telecommunications providers installing low-voltage cable, telephone, internet and data service (not including digging, trenching, grading, boring, compacting or filling before the service drop). Finally, A.R.S. 32-1121(B): a person licensed in a particular trade ‘is not required to obtain and maintain a separate license for mechanical or structural service work the person performs within the scope of that trade.’
Fees
License fees are set for a two-year license. New HVAC-classification application (application fee + license fee + Residential Recovery Fund assessment): Specialty Commercial (C-39/C-79/C-58/C-49/C-45) = $100 + $480 + $0 = $580; Specialty Residential (R-39/R-45) = $80 + $270 + $370 = $720; Specialty Dual (CR-39/CR-79/CR-58/CR-45) = $100 + $380 + $370 = $850. Renewal (license fee + Recovery Fund): Specialty Commercial = $480; Specialty Residential = $270 + $270 = $540; Specialty Dual = $380 + $270 = $650. These totals do NOT include examination fees (SRE $61 to Gmetrix; trade exam $66 to PSI) or the required contractor’s license bond. Under A.R.S. 41-1080.01, the Registrar waives the initial application fee for a first-time Arizona sole-proprietor applicant who is an active-duty military service member’s spouse, an honorably discharged veteran (discharged not more than two years before applying), or an individual whose family income is at or below 200% of the federal poverty guidelines - but residential/dual applicants still pay the Residential Recovery Fund assessment. A $50 fee applies to late renewal.
Exam
Arizona requires the qualifying party to pass two examinations, each with a minimum score of 70%. The first is the AZ Statutes and Rules Training Course and Exam (SRE), an open-book, computer-based course-and-exam offered only online through Gmetrix ($61, paid to Gmetrix); because it covers Arizona-specific statutes and rules, it cannot be waived. The second is the trade-specific examination for the classification sought (for HVAC, the Air Conditioning and Refrigeration exam), taken online or at a PSI Services test center ($66, paid to PSI). The trade exam may be waived (Application to Waive a Trade Examination, submitted with the license application, not pre-approved) if the qualifying party was, within the preceding 5 years, a qualifying party for a licensee in Arizona or another state in the same or a comparable classification (A.A.C. R4-9-106(E); A.R.S. 32-1122(F)). NASCLA accredited-exam alternatives exist only for the KB building and the -11 electrical classifications.
Renewal & continuing education
Biennial (two-year license). Under A.R.S. 32-1125, a license is suspended by operation of law on the next business day following its renewal date unless a renewal application with a valid bond/cash deposit on file and the required fee is received or postmarked on or before the renewal date. A license suspended for failure to renew may be reactivated and renewed within one year of suspension by filing the renewal application and paying the renewal fee plus a $50 fee; after more than one year suspended for failure to renew, a new application and new license are required. Renewal itself requires no examination or continuing education - only Arizona Corporation Commission good standing (for LLCs/corporations), a current bond covering the anticipated annual volume, workers’ compensation information, and the renewal fee. None. Arizona does not require continuing education to renew a contractor’s license. The AZ ROC renewal checklist conditions renewal only on Corporation Commission good standing (LLCs/INCs), an active bond covering the annual volume, workers’ compensation policy information (or an exemption selection), and payment of the renewal fee - there is no continuing-education step. (A separate federal EPA Section 608 refrigerant certification, held by the individual technician, is not an Arizona license and is not part of ROC renewal.)
How to apply
Applications are handled by Arizona Registrar of Contractors (AZ ROC). Start at the official application page .