WYOMING · plumber
Not regulated at state level
Individual Wyoming municipalities →No Statewide Plumbing License
Wyoming does not issue a statewide plumbing license. The Wyoming Department of Fire Prevention and Electrical Safety licenses electrical work only; plumbing is regulated at the municipal level. There is no Wyoming plumbing board. Source: Wyoming State Fire Marshal Electrical Safety (https://wsfm.wyo.gov/electrical-safety) confirms the department's scope is electrical; Wyoming Statutes Title 35 does not establish a statewide plumber licensing program.
Municipal Licensing
Wyoming cities handle plumbing licensing at the local level. Cheyenne, Casper, Laramie, Gillette, Rock Springs, Sheridan, Jackson, and smaller communities each set their own plumber registration, exam, and permit rules. Some cities require a journeyman or master plumber exam and a municipal license; others require only a business registration. Before quoting a job, call the code-enforcement or building-department office in the city or county where the work will occur. Source: City of Cheyenne (https://www.cheyennecity.org/), City of Casper (https://www.casperwy.gov/), and other municipal sites.
Counties
Some Wyoming counties run their own building departments that license plumbers outside incorporated cities. Verify with the county building department where work will occur.
Apprenticeship
Wyoming has a Registered Apprenticeship program administered through the U.S. Department of Labor Office of Apprenticeship, since Wyoming does not operate a State Apprenticeship Agency for plumbing. UA Local 192 (Cheyenne) and UA Local 59 (Casper area) run joint apprenticeships that include plumbing and pipefitting scope. Non-union shops and community-college programs also lead to qualifying experience for municipal exams.
Verification Advice
Before accepting plumbing work in Wyoming, confirm three things in writing: (1) any municipal plumber license or registration in the city or county where the job sits, (2) Wyoming workers' compensation coverage through the Wyoming Department of Workforce Services (required for nearly all construction employers), and (3) general liability insurance at the level your contracts require. Each is administered by a different authority.