HVAC technician: school or apprenticeship, EPA 608, state license
HVAC technicians usually take a 6-month to 2-year program at a technical school or community college, or train in an apprenticeship. Federal law requires nearly all of them to hold EPA Section 608 refrigerant certification; some states and cities also license them.
For: Students who like hands-on repair work on heating, air conditioning and refrigeration systems.
Route 1: Certificate or associate degree, then on the job Most common
BLS: HVAC technicians typically need postsecondary instruction from technical and trade schools or community colleges.
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Start here
After high school
BLS
Heating, Air Conditioning, and Refrigeration Mechanics and Installers — Summary (Quick Facts)U.S. Bureau of Labor Statistics (OOH)- Checked
- 20 Oct 2026
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6 months–2 years
HVAC program: certificate or associate degree
Programs in heating, air conditioning and refrigeration at technical and trade schools or community colleges.
BLS
Heating, Air Conditioning, and Refrigeration Mechanics and Installers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 20 Oct 2026
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Certificate
EPA Section 608 certification
Passing the exam is typically part of completing a postsecondary HVACR program.
BLS
Heating, Air Conditioning, and Refrigeration Mechanics and Installers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 20 Oct 2026
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On the job
Long-term training after hire
BLS
Heating, Air Conditioning, and Refrigeration Mechanics and Installers — Summary (Quick Facts)U.S. Bureau of Labor Statistics (OOH)- Checked
- 20 Oct 2026
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Exam gate
State or local license
Some states and localities require HVAC technicians to be licensed: check yours (matrix below).
BLS
Heating, Air Conditioning, and Refrigeration Mechanics and Installers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 20 Oct 2026
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Goal
Working HVAC technician
BLS
Heating, Air Conditioning, and Refrigeration Mechanics and Installers — Summary (Quick Facts)U.S. Bureau of Labor Statistics (OOH)- Checked
- 20 Oct 2026
Route 2: Apprenticeship Earn while you learn
An apprenticeship usually lasts several years: paid on-the-job training plus some technical instruction each year.
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Start here
After high school
BLS
Heating, Air Conditioning, and Refrigeration Mechanics and Installers — Summary (Quick Facts)U.S. Bureau of Labor Statistics (OOH)- Checked
- 20 Oct 2026
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Several years
Apprenticeship
Paid on-the-job training and technical instruction each year; apprentices also learn to use a variety of tools.
BLS
Heating, Air Conditioning, and Refrigeration Mechanics and Installers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 20 Oct 2026
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Rule
Supervised apprentices are exempt
Apprentices do not need Section 608 certification while closely and continually supervised by a certified technician.
EPA
Section 608 Technician Certification RequirementsU.S. Environmental Protection Agency- Checked
- 20 Oct 2026
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Certificate
EPA Section 608 certification
An EPA-approved test, given by an EPA-approved certifying organization.
EPA
Section 608 Technician Certification RequirementsU.S. Environmental Protection Agency- Checked
- 20 Oct 2026
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Goal
Working HVAC technician
BLS
Heating, Air Conditioning, and Refrigeration Mechanics and Installers — Summary (Quick Facts)U.S. Bureau of Labor Statistics (OOH)- Checked
- 20 Oct 2026
National certifications and federal rules
Federal rules apply in every state; voluntary certifications are ones employers may ask for. State rules are in the matrix below.
- EPA Section 608
Federal law · everyone who services refrigerant equipment - Type I: small appliances. Type II: high- or very high-pressure appliances. Type III: low-pressure appliances. Universal: all types. The credential does not expire; a core test taken open-book cannot count toward Universal.
EPA
Section 608 Technician Certification RequirementsU.S. Environmental Protection Agency- Checked
- 20 Oct 2026
- Manufacturer or industry certification
Optional - Many certifications are optional, although some employers prefer or require specific ones.
BLS
Heating, Air Conditioning, and Refrigeration Mechanics and Installers — How to Become OneU.S. Bureau of Labor Statistics (OOH)- Checked
- 20 Oct 2026
State licensing matrix
HVAC licensing is split between technicians and contractors, and each state draws the line differently. Four examples:
| State or city | What you need |
|---|---|
| Texas Texas Department of Licensing and Regulation (TDLR) |
Anyone who helps a licensed ACR contractor with maintenance or repair must register as a technician ($20) and work under that contractor. A contractor license (Class A: any size; Class B: cooling up to 25 tons, heating up to 1.5 million BTU/hour) needs 48 months of supervised experience within 72 months, or 36 within 48 after 12 months as a certified technician. TDLRAir Conditioning and Refrigeration Technician RegistrationTexas Department of Licensing and Regulation
TDLRAir Conditioning and Refrigeration Contractor LicenseTexas Department of Licensing and Regulation
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| California Contractors State License Board (CSLB) |
The state licenses HVAC contractors as C-20 (warm-air heating, ventilating and air-conditioning). A contractor license needs 4 years of journey-level experience; training or an apprenticeship can replace up to 3 of them. CSLBC-20 Warm-Air Heating, Ventilating and Air-Conditioning ContractorCalifornia Contractors State License Board
CSLBFrequently Asked Questions About Journey-level ExperienceCalifornia Contractors State License Board
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| Florida Construction Industry Licensing Board; counties and cities |
The state certifies Class A (unlimited) and Class B (up to 25 tons of cooling and 500,000 Btu of heating per system) air-conditioning contractors. Counties and cities issue HVAC journeyman licenses (exam + apprenticeship or 12,000 hours). Fla. Stat.Florida Statutes s. 489.105 — Definitions (contractor classes)The Florida Senate
Fla. Stat.Florida Statutes s. 489.1455 — Journeyman; reciprocity; standards (plumbing, mechanical, HVAC)The Florida Senate
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| Washington Department of Labor & Industries (L&I) |
Electrical work on HVAC/R systems needs a specialty electrician certificate: HVAC/refrigeration (06A) needs 4,000 hours of work experience; the restricted 06B needs 2,000, which can count toward 06A. WACWAC 296-46B-945 — Qualifying for master, journey level, specialty electrician examinationsWashington State Legislature
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| Ohio Ohio Construction Industry Licensing Board (OCILB), Division of Industrial Compliance |
The state licenses commercial HVAC and refrigeration contractors (a contractor or 'master' license) who pass the PSI licensing exam. Local building departments regulate residential contractors. Exam: PSI licensing examination. OCILBOhio Construction Industry Licensing BoardOhio Department of Commerce, Division of Industrial Compliance
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Where to go next
Every trade on one matrix: entry, license, BLS pay and outlook.
What the job is, BLS pay and job outlook, and the tools of the trade.