HVAC · Local (city/county) licenses
How to get an HVAC license in Wyoming
State law and licensing-board sources · Last reviewed October 11, 2026
Journeyman level Licensed by cities or counties, not the state What's a journeyman?
In Wyoming, HVAC (heating, ventilation and air conditioning) workers are licensed by cities and counties, not by a state HVAC board that we could find. Cheyenne and Casper license mechanical apprentices, journeymen and masters; Cheyenne's journeyman takes 4 years and 8,000 hours as a licensed apprentice plus an exam. The state's electrical office issues a limited HVAC technician license for electrical work on the load side of the equipment disconnect, and federal law requires EPA Section 608 certification to handle refrigerants. [1][2][3][4][5]
New to the trade?
Starting from zero in Wyoming
To start in HVAC in Wyoming, get hired by a licensed mechanical or HVAC contractor, then get the local apprentice license where you work: Cheyenne requires every HVAC worker on a job site to be licensed, and Casper issues the apprentice license to your employer in your name. Plan to earn EPA Section 608 certification before you handle refrigerants. [2][3][5]
Minimum age
UA Local 192 requires applicants to be at least 18. [9]
Get your apprentice license before you work
Cheyenne's regulations say all employees on an HVAC or refrigeration job site must hold a master, journeyman or apprentice license or be a qualified supervisor Apply on the city's OpenGov portal. Casper's mechanical apprentice license is $3. [2][3][14]
Helper jobs
In Cheyenne, no one may employ an unlicensed apprentice, and a journeyman or master may supervise at most three mechanical apprentices. Supervision steps down from 100% in year one to 25% in year four. [2]
EPA 608 certification
Federal rules require technicians who maintain, service, repair or dispose of equipment that could release refrigerants to pass an EPA-approved Section 608 test. The certification doesn't expire. [5]
Electrical work on HVAC units
In Cheyenne, an HVAC or refrigeration licensee may wire the load side of the disconnect only with a limited electrical license. At the state level, an apprentice technician must register with the electrical department and be supervised by a licensed technician, one apprentice per technician. [2][12]
Pay while you learn
UA Local 192 apprentices work full time for contractors during the day and take evening classes three times a week. [8]
Still in high school?
Wyoming's Pre-Apprenticeship Pathways connect youth ages 16 to 24 to construction careers and help high school students earn post-secondary credentials. Districts set their own career and technical education (CTE) programs, and dual and concurrent enrollment earns college credit at Wyoming's community colleges and the University of Wyoming. We found no local rule that counts high school CTE hours toward an HVAC license. [13][15][16]
Where to apply in WyomingHow to get an apprenticeshipHelper jobs
Wyoming HVAC license at a glance
- Journeyman experience (Cheyenne)
- 4 years with 8,000 hours as a licensed apprentice (or certified equivalent training) plus an exam Residential-only journeyman: 2 years and 4,000 hours [2]
- Journeyman experience (Casper)
- A completed federally recognized mechanical apprenticeship, or 4 years in a Casper-licensed mechanical shop, plus ICC exam G31-N or G29-N [3]
- Moving within Wyoming
- Local governments must recognize another Wyoming jurisdiction's active contractor license if the contractor passed an ICC exam or equivalent (W.S. 16-6-1101). The law defines a contractor as someone contracting with a property owner, so ask the city whether it covers your individual license [1]
On this page
The license pathway in Wyoming
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1
Mechanical apprentice (local license)
- Cheyenne $10 application + $10 license; Casper $3
- Cheyenne yearly, $5; Casper $3
Lets you learn HVAC work under a licensed journeyman or master. Cheyenne allows no more than three mechanical apprentices per journeyman or master. Casper issues the license to your employer in your name, valid only while you work there. [2][3]
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2
Residential mechanical journeyman (Cheyenne)
- 4,000 hours on the job
- 2 years of experience
- Yes, the applicable journeyman exam
- Yearly
Journeyman-level work on residential buildings only, after 2 years and 4,000 hours as a licensed apprentice; you may supervise one apprentice. [2]
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3
Mechanical journeyman (local license)
- 8,000 hours on the job
- 4 years of experience
- Yes: Cheyenne uses ICC or other board-approved exams; Casper accepts ICC G31-N or G29-N
- Cheyenne $50 application + $30 license; Casper $25
- Cheyenne yearly, $15; Casper $15
Heating, venting, air conditioning, refrigeration and related sheet metal work as an employee of a mechanical contractor. Cheyenne requires 4 years with 8,000 hours as a licensed apprentice; Casper requires a completed federally recognized apprenticeship or 4 years in a Casper-licensed mechanical shop. [2][3]
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4
Limited HVAC technician (state electrical license)
- 4,000 hours on the job
- 2 years of experience
- Yes: ICC 600 Wyoming Limited HVAC Technician, 40 questions, open book, 2 hours, $115 (Pearson VUE)
- $100
- Every 3 years (July 1), $50
A Wyoming Department of Fire Prevention and Electrical Safety license for electrical work on HVAC systems on the load side of the equipment disconnect. You need 2 years (4,000 hours) in that part of the trade and must work for a licensed low voltage/limited contractor. [4][6][12]
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5
Mechanical master (local license)
- 14,000 hours on the job
- 7 years of experience
- Yes: Casper accepts ICC G29-N; Cheyenne uses ICC or other board-approved exams
- Cheyenne $50 application + $50 license; Casper $75
- Cheyenne yearly, $25; Casper $37.50
Needed to qualify a mechanical contractor. Cheyenne requires 8,000 hours as an apprentice plus 3 years and 6,000 hours as a journeyman. Casper requires a completed federally recognized apprenticeship, or 4 years in a Casper-licensed mechanical shop and 5 years as a journeyman or master in one. [2][3]
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6
Mechanical, HVAC or refrigeration contractor (local license)
- Casper $300
- Casper $150
A business license. Casper's mechanical contractor must employ a full-time licensed mechanical master. Cheyenne issues separate Class C1 HVAC and refrigeration contractor licenses and requires a master or qualified supervisor. [2][3]
Who licenses HVAC work in Wyoming
HVAC licenses in Wyoming come from local governments. Under W.S. 16-6-1101, passed in 2024, every county, city or town that licenses contractors must recognize a contractor license from another Wyoming jurisdiction if it's active and in good standing and you passed the ICC "contractor, plumbing, mechanical or another appropriate examination, or an equivalent."
The state does license one piece: electrical work. Wyoming's Department of Fire Prevention and Electrical Safety issues a limited HVAC technician license (LM-H) for "electrical work for heating, ventilating and air conditioning systems limited to electrical work on the load side of the equipment disconnect." It needs 2 years (4,000 hours) of experience in that work, and technicians must be employed by a licensed low voltage/limited contractor. [1][4]
Cheyenne
The Cheyenne Contractor Licensing Board licenses HVAC and refrigeration contractors (Class C1) and the people who work for them. Every worker on an HVAC or refrigeration job site must hold a master, journeyman or apprentice license or be a qualified supervisor.
Journeymen need 4 years and 8,000 hours as a licensed apprentice (or certified equivalent training) plus an exam; a residential-only journeyman needs 2 years and 4,000 hours. Masters need 8,000 apprentice hours plus 3 years and 6,000 hours as a journeyman. Refrigeration contractor applicants must show EPA Type II, Type III or Universal certification. HVAC and refrigeration licensees need a limited electrical license to work on the load side of the disconnect.
Licenses expire one year after issue. Call (307) 637-6265. [2]
Casper
Casper's Community Development Department licenses mechanical work, defined as "heating, venting, air conditioning, refrigeration, and associated sheet metal work."
- Mechanical apprentice: issued to the contractor in your name, valid only while you work there; $3.
- Mechanical journeyman: a completed federally recognized mechanical apprenticeship, or 4 years in a Casper-licensed mechanical shop, plus ICC G31-N or G29-N; $25 new, $15 renewal.
- Mechanical master: a completed apprenticeship, or 4 years in a Casper-licensed shop and 5 years as a journeyman or master in one, plus ICC G29-N; $75 new, $37.50 renewal.
- Mechanical contractor: must employ a full-time licensed mechanical master; $300 new, $150 renewal.
Call the Building Inspection Division at (307) 235-8254. [3]
EPA 608 and the state technician exam
EPA Section 608 certification is federal and required to work on equipment that could release refrigerant. Tests are specific to equipment types (Type III covers low-pressure appliances; Universal covers all types), are given by EPA-approved organizations, and the certification doesn't expire. See our EPA 608 guide.
The state's limited HVAC technician exam is ICC exam 600: 40 multiple-choice questions, open book, 2 hours, $115 at Pearson VUE. The technician license costs $100 and renews every 3 years for $50. [4][5][6]
Apprenticeships
UA Plumbers and Pipefitters Local 192 in Cheyenne serves all of Wyoming. Its five-year apprenticeship includes steam, hydronics and air conditioning, with at least 8,500 hours of paid on-the-job training and 1,230 hours of evening classes; applicants must be 18 with a diploma or GED.
You can also learn by working as a licensed apprentice for any licensed mechanical or HVAC contractor. Search the U.S. Department of Labor Apprenticeship Finder for registered programs, and see helper jobs and how to get an apprenticeship. [7][8][9][10]
Steps to get licensed in Wyoming
Get hired and licensed as an apprentice
Find work with a licensed mechanical, HVAC or refrigeration contractor and get the apprentice license for the city where you work. [2][3]
Earn EPA 608 certification
Pass an EPA-approved Section 608 test for the equipment types you'll service. Cheyenne's refrigeration license requires Type II, Type III or Universal. [2][5]
Document your hours
Cheyenne requires third-party verification of all dates and hours; Casper asks for notarized experience affidavits. [2][11]
Pass the journeyman exam
Casper accepts ICC G31-N or G29-N for mechanical journeyman. Cheyenne uses exams on its board's approved list (ICC, NICET, NASCLA or others), paid directly to the testing agency. [2][3]
Consider the state limited HVAC technician license
To do the electrical hookups on HVAC equipment, apply to the Wyoming electrical licensing office with 4,000 hours of experience and pass ICC exam 600 ($115). [4][6]
Where to get the hours
Programs that train HVAC technicians in or for Wyoming, from their own official pages. Listed by type, not ranked.
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Union
UA Plumbers and Pipefitters Local 192 apprenticeship
A five-year union program serving all of Wyoming, with at least 8,500 hours of paid on-the-job training and 1,230 hours of evening classes; the curriculum includes steam, hydronics and air conditioning. [7][8]
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State program
Wyoming Department of Workforce Services apprenticeship team
Supports registered apprenticeship programs and Pre-Apprenticeship Pathways for ages 16 to 24; its hub is WyApprenticeships.com. [13]
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Other
U.S. Department of Labor Apprenticeship Finder
Search registered HVAC and refrigeration apprenticeships by location in Wyoming. [10]
Licensed in another state?
We didn't find a reciprocity agreement published by the licensing office for this license. Ask the office how it treats an out-of-state license or experience before you apply.
Questions people ask
Does Wyoming have a state HVAC license?
We found no state HVAC license. Cities and counties such as Cheyenne and Casper license mechanical workers and contractors. The state's electrical office issues a limited HVAC technician license for the electrical side of HVAC equipment. [2][3][4]
Do I need EPA 608 certification in Wyoming?
Yes, if you maintain, service, repair or dispose of equipment that could release refrigerants. It's a federal requirement, and Cheyenne's refrigeration license requires Type II, Type III or Universal certification. [2][5]
How long does it take to become an HVAC journeyman in Cheyenne?
4 years with 8,000 hours as a licensed apprentice (or certified equivalent training) plus an exam, or 2 years and 4,000 hours for a residential-only journeyman license. [2]
Sources (16)
- Wyoming Statutes Title 16, W.S. 16-6-1101 (contractor licenses; reciprocity), created by 2024 Enrolled Act 37 (SF0114), Wyoming Legislature. Accessed October 11, 2026.
- City of Cheyenne Contractor Licensing Regulations (Rev. 03/10/2026), City of Cheyenne Contractor Licensing Board. Accessed October 11, 2026.
- Plumbing, Mechanical, and Individual Contractor Licenses, City of Casper Community Development Department. Accessed October 11, 2026.
- Electrical Licensing, Wyoming Department of Fire Prevention and Electrical Safety (State Fire Marshal). Accessed October 11, 2026.
- Section 608 Technician Certification Requirements, U.S. Environmental Protection Agency. Accessed October 11, 2026.
- Wyoming Electrical Contractor/Trades Examination Information Bulletin (August 19, 2025), International Code Council. Accessed October 11, 2026.
- UA Local 192 Plumbers and Pipefitters (home page), UA Plumbers and Pipefitters Local 192. Accessed October 11, 2026.
- Apprenticeship Program, UA Plumbers and Pipefitters Local 192. Accessed October 11, 2026.
- JATC Application, UA Plumbers and Pipefitters Local 192. Accessed October 11, 2026.
- Apprenticeship Finder, U.S. Department of Labor. Accessed October 11, 2026.
- Contractor Licensing, City of Casper Community Development Department. Accessed October 11, 2026.
- Wyoming Statutes Title 35, Chapter 9, Article 1 (Fire Prevention and Electrical Safety), W.S. 35-9-101 to 35-9-131, Wyoming Legislature. Accessed October 11, 2026.
- Apprenticeship Expansion and Pre-Apprenticeship Pathways, Wyoming Department of Workforce Services. Accessed October 11, 2026.
- Building Permitting & Licensing, City of Cheyenne. Accessed October 11, 2026.
- Career & Technical Education, Wyoming Department of Education. Accessed October 11, 2026.
- Dual & Concurrent Enrollment, Wyoming Department of Education. Accessed October 11, 2026.