Wyoming HVAC License Requirements
No. Wyoming has no statewide HVAC license; cities and counties license HVAC work. Anyone who handles refrigerant also needs federal EPA 608 certification.
Local only · By BrazeJobs Team · Updated
Requirements
| Local license | Varies by city |
Local licenses in Wyoming
Cheyenne
CityCity contractor and individual (master/journeyman/apprentice) licenses
Cheyenne Building Safety Department, Contractor Licensing Board
Cheyenne Contractor Licensing Board regulations: no one may be employed as a qualified supervisor, master, journeyman or apprentice without the proper city license.
- Source: cheyennecity.org · checked November 5, 2026
Casper
CityMechanical contractor license; mechanical master/journeyman licenses
Casper Community Development, Building Inspection Division
Mechanical contractor must have or employ a full-time licensed mechanical master. Master: federally recognized apprenticeship or equivalent experience in Casper-licensed shops.
- Source: casperwy.gov · checked November 5, 2026
Gillette
CityCity contractor license; individual trade license
Gillette Development Services, Building Division
Contracting in the city without a license is a misdemeanor (up to $750 per day, Sec. 5-III-10).
- Source: gillettewy.gov · checked November 5, 2026
Federal: EPA 608 certification
| Rule | Federal certification required to service or dispose of refrigerant equipment and to buy refrigerant |
Who: anyone who maintains, services, repairs or disposes of equipment that could release refrigerant (attaching gauges, adding or removing refrigerant). Types: Type I (small appliances), Type II (high- and very high-pressure), Type III (low-pressure), Universal (all types). Expiry: credentials do not expire. Buying refrigerant: sellers may sell only to certified technicians or employers of one, with limited exceptions (e.g. small cans of MVAC refrigerant). EPA does not issue cards; approved certifying organizations do. Universal requires a proctored core exam.
Apprenticeship
| Registering agency | U.S. Department of Labor Office of Apprenticeship (no state agency) |
Programs register through the Office of Apprenticeship; use the Partner Finder for local sponsors.
- Source: apprenticeship.gov · checked November 6, 2026
Mechanical code
| Code in force | 2024 IMC |
State Fire Marshal adopted the 2024 International Codes on June 28, 2024; list does not include IRC or a plumbing code. Local jurisdictions may adopt their own codes (see Fire Marshal local/state jurisdiction chart).
- Source: wsfm.wyo.gov · checked November 5, 2026