Wyoming · plumber licensing · verified July 2026
Wyoming plumber license requirements
The short answer
As of July 2026, Wyoming has no statewide plumber license or state plumbing board; plumbing licensing is handled by individual cities and counties. In Cheyenne (the largest city), the Contractor Licensing Board licenses plumbing apprentices, journeymen (4 years/8,000 hours as a licensed apprentice plus an ICC-administered exam), residential journeymen (2 years/4,000 hours), and masters (8,000 apprentice hours plus 3 years/6,000 hours as a journeyman), with all licenses expiring annually. Casper similarly licenses plumbers through its municipal building department; requirements and fees vary by jurisdiction.
Do you need a license to work as a plumber in Wyoming?
Wyoming has no statewide license for plumbers. Cities and counties license the trade, so the requirement depends on where you work.
All tier, hour, exam, and fee details above are from the City of Cheyenne Contractor Licensing Board Rules and Regulations (rev. 3/10/2026) and apply within Cheyenne only; other Wyoming municipalities set their own requirements.
What licenses does Wyoming issue?
No credential for this trade is issued at state level in Wyoming; the classes below are issued by cities or counties, and the exact set depends on which one you work in.
Hours are what each class asks for on its own terms. Where a senior class shows fewer than a journeyman, the board is counting time served after the earlier license rather than from the start; the prerequisite column says which.
| License | On-the-job hours | Classroom hours | Exam |
|---|---|---|---|
| Apprentice level craft employee - plumbing (City of Cheyenne example) | not published | not published | No |
| Journeyman level craft employee - plumbing (City of Cheyenne example) | 8,000 | not published | Yes |
| Residential Plumbing Journeyman (City of Cheyenne example) | 4,000 | not published | Yes |
| Master level craft employee - plumbing (City of Cheyenne example) | 14,000 | not published | Yes |
| Plumbing Contractor - Class C-1 (City of Cheyenne example) | not published | not published | No |
Source: the governing statute (wyoleg.gov). Verified July 2026.
Journeyman level craft employee - plumbing (City of Cheyenne example): 4 years / 8,000 hours as a licensed apprentice (or certified equivalent training)
Residential Plumbing Journeyman (City of Cheyenne example): 2 years / 4,000 hours as a licensed apprentice
Master level craft employee - plumbing (City of Cheyenne example): 8,000 hours as apprentice plus 3 years / 6,000 hours as journeyman
How many hours do you need in Wyoming?
Wyoming requires 8,000 hours of on-the-job experience for a Journeyman level craft employee - plumbing (City of Cheyenne example) plumber license. At a 40-hour week the on-the-job portion is roughly 4 years of full-time work.
What exam does Wyoming require?
Plumbing trade examinations (journeyman/master/residential journeyman) - Cheyenne example; Board-maintained exam list. Administered by International Code Council (ICC), NICET, NASCLA, or other testing agencies approved by the Cheyenne Contractor Licensing Board.
How much does a Wyoming plumber license cost?
Wyoming sets its fees per license class rather than as one figure for the trade, so no single total would be true of every applicant. The published items are below exactly as the board sets them.
- Application feeset per license class
- Initial license feeset per license class
- Renewal fee (recurring)set per license class
How often do you renew, and what continuing education is required?
Renewal period: Varies by municipality; Cheyenne licenses expire annually, one year from date of issuance
Continuing education: No continuing education requirement appears in the Cheyenne Contractor Licensing Board rules; requirements vary by municipality
How does the apprenticeship route work?
Municipal: in Cheyenne, apprentices hold a city apprentice license and work under direct supervision on a declining scale (100%/75%/50%/25% over four years, max 3 plumbing apprentices per journeyman or master); 8,000 documented apprentice hours qualify for the journeyman exam and 4,000 hours for the residential journeyman exam. Cheyenne's board may also accept reciprocity from jurisdictions with equivalent current licenses at its discretion.
Which states does Wyoming have license reciprocity with?
Wyoming does not license this trade at state level, so there is no state agreement to publish. Whether an out-of-state license helps is decided by the city, county or contractor board that issues the credential where you intend to work.
How does Wyoming compare to neighboring states?
Requirements stop at the state line, which matters if you live near one or expect to move. Here is what the neighboring states ask of the same trade.
| State | Journeyman hours | Licensing model |
|---|---|---|
| Wyoming | 8,000 | City or county |
| Colorado | 6,800 | Statewide |
| Idaho | 8,000 | Statewide |
| Montana | 7,500 | Statewide |
| Nebraska | not published | City or county |
| South Dakota | not published | Statewide |
| Utah | not published | Statewide |
Source: state licensing boards. Verified July 2026.
How does Wyoming compare nationally?
21 states publish an explicit hour figure for this trade, and they range from 4,000 to 12,000 hours. Wyoming's 8,000 hours is what 9 of them ask, making it the standard rather than an outlier; 9 states ask less and 3 ask more. The full comparison is on the hours by state table.
Sources and verification
Every fact on this page traces to one of these
- City of Cheyenne - Building Permitting & Licensing (Compliance Department)
- City of Cheyenne Contractor Licensing Board Rules and Regulations (rev. 3/10/2026)
- Wyoming Statutes Title 33 - Professions and Occupations (official wyoleg.gov compilation; no plumbing chapter)
Last verified July 2026, independently re-verified before publication. Found an error? Report it and it will be corrected and logged on the corrections page.
Other states with published requirements for this trade: Alabama, Alaska, Arizona.
Price the whole path with the license cost estimator, or weigh earning against paying for school with the apprenticeship comparison. Back to plumbers overview.
Licensing requirements change between our verification sweeps. This page is informational only, so confirm current requirements with your city or county building department before making decisions. Not legal advice.