How Do I Become a Licensed HVAC Technician? What Six States Require

You become a licensed HVAC technician in layers, and the first one is federal: EPA Section 608 certification, which you need before you handle refrigerant. The next layer is whatever your state asks of the individual, and it varies a great deal. Some states issue a technician credential, some tie your work to a company's license, and some leave the question to cities.

This page covers six states where we opened the official source: Texas, Washington, North Carolina, Minnesota, Michigan and Florida. Our founders, Marshall Schofield and Jeremiah Jaskulski, are licensed general contractors, master electricians, master plumbers and master mechanical, so we cover both sides: the card in your wallet and the contractor license that lets a company sell HVAC work. If you are looking at how a business gets licensed in your state, start with our contractor license guide.

At a glance

• Federal: EPA says technicians who maintain, service, repair or dispose of equipment that could release refrigerants must be certified, and Section 608 credentials do not expire (EPA).
• Texas: TDLR lists a Registered Technician credential with a $20 application fee and a Certified Technician credential with an exam (TDLR).
• Washington: the 06A HVAC/refrigeration specialty requires 4,000 hours of work experience and 48 hours of basic classroom instruction (L&I).
• North Carolina and Minnesota: the North Carolina Board lists Class I and Class II technician licenses, while G.S. 87-21(b)(2)c. separately creates a government employee technician license, and Minnesota says it has no state license requirement for individual employees of mechanical contractors (NC Board; NC General Assembly; Minnesota DLI).

The layers, in plain words

Layer one, EPA Section 608. This is a federal certification under 40 CFR Part 82, Subpart F. It is not a state license, and no state card replaces it. Our guide to EPA 608 certification versus an HVAC license explains how the two fit together.

Layer two, the state or local credential. This might be a technician registration, a specialty electrical certificate, a local competency card, or nothing individual because you work under your employer's contractor license.

Layer three, the contractor license. To sell HVAC work, a company needs the license your state requires. See how to get an HVAC contractor license and what license you need to start an HVAC business.

Step one: EPA Section 608 certification

EPA states that technicians who maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere must be certified. EPA offers four types.

1. Type I for servicing small appliances.
2. Type II for servicing or disposing of high or very high pressure appliances.
3. Type III for servicing or disposing of low pressure appliances.
4. Universal for servicing all types of equipment.

You must pass an EPA approved test given by an EPA approved certifying organization. EPA says the core test must be proctored for Universal certification, and that Section 608 credentials do not expire.

EPA also says apprentices are exempt from certification if a certified technician closely and continually supervises them. That exemption is about federal certification only. It does not mean an apprentice can skip a state's registration or credential rules.

Step two: what your state asks of the individual

We opened every source on October 12, 2026. Confirm any figure with the board before you file.

Texas: Registered and Certified Technician

• Start with the Texas contractor license page and our Texas HVAC license guide.
• TDLR's air conditioning and refrigeration page lists three credentials: Contractor License, Registered Technician and Certified Technician.
• TDLR's registration page says anyone who assists a licensed contractor with maintenance or repair work must register as a technician, must work under the supervision of a licensed air conditioning and refrigeration contractor, and may not advertise services. The application fee is $20, applicants must be at least 16 years old, and TDLR runs a criminal history background check.
• The Certified Technician page offers two ways in. One is a department approved training program of 2,000 hours of combined instruction and practical experience. The other is 24 months of air conditioning and refrigeration work under a licensed contractor's supervision, verified on a form the contractor completes. You must be at least 18, the application fee is $50, and you must finish every step, including the exam, within one year of filing.
• The contractor application page lists a technician route to a contractor license: a technician certification held for the past 12 months plus 36 months of supervised experience within the prior 48 months. The other route is 48 months of practical experience within the past 72 months.

Washington: the 06A specialty electrical certificate

• See the Washington contractor license page, our Washington HVAC guide and the Washington electrical contractor license guide.
• The pages we read from L&I concern the electrical side of HVAC work. RCW 19.28.161 says no person may engage in the electrical construction trade without a valid certificate of competency, and RCW 19.28.161(2)(b) says all apprentices and individuals learning the trade must obtain an electrical training certificate.
• Supervision means the same jobsite under a certified electrician, who must be present a minimum of seventy-five percent of each working day.
• L&I's electrician page says the HVAC/refrigeration specialty, 06A, requires 4,000 hours of work experience, and trainees must complete 48 hours of basic classroom instruction before they can renew or qualify for examination.
• WAC 296-46B-920 says the 06A specialty is not limited by voltage, phase or amperage, and then lists permitted work and limits.
• We did not read a Washington rule for non electrical HVAC work, so confirm with L&I.

North Carolina: heating groups and the Board's technician licenses

• Start with the North Carolina contractor license page and our North Carolina HVAC guide.
• G.S. 87-21 requires a license before anyone engages in or offers to engage in plumbing, heating or fire sprinkler contracting, and it defines heating groups one, two and three by system type and size.
• Separately, G.S. 87-21(b)(2)c. creates a government employee technician license, available to people who do not hold the required heating contractor license and who install, repair or replace those systems solely as an employee of a State or local government agency.
• The State Board of Examiners of Plumbing, Heating, and Fire Sprinkler Contractors lists several technician licenses on its applicant page. For the Plumbing, Heating and Fuel Piping Technician license, Class I needs 18 months (3,000 hours) and Class II needs 15 months (2,500 hours) of on site full time experience in installation, maintenance, service or repair. The page also lists a Private Educational Institution Technician license and the State and Local Government Technician license, each at 18 months (3,000 hours). The Board's technician definitions say who each license covers, so read them before you apply.
• The page lists the plumbing and heating contractor license at 2 years (4,000 hours) of on site full time experience, and says up to one half (2,000 hours) may come from academic or technical training directly related to the field.
• The Board's FAQ says licensed work may be performed by the license holder or by the firm's employees, supervised by a listed qualified individual.

Minnesota: no state license for employees, and cities may add one

• See the Minnesota contractor license page and our Minnesota HVAC guide.
• DLI's mechanical contractor bond page says businesses must file a $25,000 mechanical contractor bond with DLI to contract to perform gas, heating, ventilation, cooling, air conditioning, fuel burning or refrigeration work.
• The same page says Minnesota has no state license requirement for individual employees of mechanical contractors, and that cities may require licensure or a competency card for workers performing mechanical work. The page says DLI does not issue those cards, so ask the city.

Michigan: the license sits with the contractor

• Read the Michigan HVAC guide and the Michigan contractor license page.
• MCL 339.5809 says a person needs a mechanical contractor's license from the department to perform regulated installations, alterations or servicing unless an exception applies. For an individual, the license can be held personally or by an employee.
• MCL 339.5807(1)(a) requires a minimum of 3 years or 6,000 hours of experience in the work classification, except for equivalent experience, and each contractor of record that employed the applicant must sign a statement under penalty of perjury describing that work. Subsection (1)(b) is a separate route for people who held certain licenses for 3 continuous years. Completing a 2 year HVAC program can be credited toward the experience, up to 1 year or 2,000 hours.
• The sections we read license the contractor and describe no separate journeyman card. Confirm with the Bureau of Construction Codes.

Florida: employees work within a licensed contractor's scope

• Start with the Florida contractor license page, the Florida HVAC guide and the mechanical contractor license guide.
• Section 489.113(2) says a person must be certified or registered to engage in the business of contracting. A subcontractor who is not certified or registered may work under the supervision of a person who is, within that contractor's license.
• Section 489.103(2) exempts an employee of a certificateholder or registrant acting within the scope of the license and with the licenseholder's knowledge and permission.
• Section 489.111(2)(c)2. sets one contractor path: at least 4 years of active experience as a worker who learned the trade by serving an apprenticeship, with at least 1 year as a foreman.
• Section 489.105 defines a Class A air-conditioning contractor as one whose services are unlimited and a Class B contractor as one limited to 25 tons of cooling and 500,000 Btu of heating in any one system. A Class C contractor is limited to servicing, and only those registered or certified as of October 1, 1988 may hold it.
• We did not read a statewide Florida technician card. Section 489.113(2) also says it does not affect local construction licensing ordinances, so check your county and city.

A practical path for a new technician

1. Pick the state and the city first. Look up the state board and then the city or county building department, because Minnesota and Florida show that the local layer can matter.
2. Get EPA 608 certification before you handle refrigerant.
3. Register or certify where your state asks. In Texas that means a Registered Technician application or the Certified Technician exam. In Washington it means the electrical training certificate and the hours for 06A.
4. Log your hours in writing. Texas requires the supervising contractor to complete a verification form, and Michigan requires each contractor of record to sign a statement describing your work.
5. Decide whether you want the contractor license. If you plan to run your own HVAC company, the individual credential is the first rung and the contractor license is the one the company needs.

Frequently asked questions

Do I need a license to work as an HVAC technician? It depends on the state. Texas says anyone who assists a licensed contractor with maintenance or repair work must register as a technician. Minnesota says it has no state license requirement for individual employees of mechanical contractors, and cities may require a license or competency card. Michigan and Florida license the contractor, and Florida exempts an employee who works within the scope of the employer's license.

Is EPA 608 the same as an HVAC license? No. EPA 608 is a federal certification for handling refrigerant. A state or local license is permission to do HVAC work or to contract for it. You may need both, and one does not stand in for the other.

Can I work as an apprentice without EPA certification? EPA says apprentices are exempt if a certified technician closely and continually supervises them. State rules still apply, as the Texas registration rule above shows.

How long does it take to become a licensed HVAC technician? There is no single answer. Texas lists 24 months of supervised work or a 2,000 hour program for the Certified Technician. Washington lists 4,000 hours for the 06A specialty. North Carolina lists 3,000 hours for Class I technician licensure and 2,500 hours for Class II. Michigan asks 3 years or 6,000 hours in the classification for a contractor license, unless equivalent experience or another route applies. Each figure belongs to a different credential, so compare the credential, not just the number.

If you want to own the company, not just work for one

A qualifying agent qualifies the company as an owner or a full time W-2 employee who supervises the work. Whether that route fits depends on your state's rule, so check your board. Read what a qualifying agent is, see the HVAC contractor qualifying agent guide for the license, exam and EPA 608 by state, and visit Hire a qualifying agent if you need one now. Our contractor qualifier services page describes how the placement works, and we offer licensing services in all 50 states.

Talk to people who hold these licenses

Marshall Schofield and Jeremiah Jaskulski hold licenses across the trades, and they read a board's rule the way a board reads it. To learn which credential or license fits your state, call 615-219-2110 or start at Hire a qualifying agent.

Sources

All sources were opened and read on October 12, 2026.

• U.S. EPA, Section 608 Technician Certification Requirements, retrieved October 12, 2026
• Texas Department of Licensing and Regulation, Air Conditioning and Refrigeration, retrieved October 12, 2026
• Texas Department of Licensing and Regulation, Apply for a Technician Registration, retrieved October 12, 2026
• Texas Department of Licensing and Regulation, Apply for a Technician Certification, retrieved October 12, 2026
• Texas Department of Licensing and Regulation, Apply for a Contractor License, retrieved October 12, 2026
• Washington L&I, Electrician licensing and exams, retrieved October 12, 2026
• Washington RCW 19.28.161, Certification, apprentices and trainees, retrieved October 12, 2026
• Washington WAC 296-46B-920, retrieved October 12, 2026
• North Carolina General Statutes 87-21, Definitions; contractors licensed by Board, retrieved October 12, 2026
• North Carolina State Board of Examiners of Plumbing, Heating, and Fire Sprinkler Contractors, Applicant Information, retrieved October 12, 2026
• North Carolina State Board of Examiners of Plumbing, Heating, and Fire Sprinkler Contractors, FAQ, retrieved October 12, 2026
• Minnesota Department of Labor and Industry, Mechanical contractor bond requirements, retrieved October 12, 2026
• Michigan Compiled Laws 339.5807, retrieved October 12, 2026
• Michigan Compiled Laws 339.5809, retrieved October 12, 2026
• Florida Statutes 489.103, Exemptions, retrieved October 12, 2026
• Florida Statutes 489.105, Definitions, retrieved October 12, 2026
• Florida Statutes 489.111, Licensure by examination, retrieved October 12, 2026
• Florida Statutes 489.113, Qualifications for practice; restrictions, retrieved October 12, 2026