LicensebyState

Wyoming to Idaho: master plumber license reciprocity

No credit· Start overVerified September 16, 2026· 8 sources

Wyoming does not issue a statewide master plumber license, so there is nothing to transfer. Here is Idaho's standard path for out-of-state applicants.

Your origin state does not issue a statewide license at this level, so there is no license to transfer. The destination's standard out-of-state path is shown; expect to meet it in full.

Reference only, not legal advice. Rules change; confirm with the licensing board before you apply. Full disclaimer.

Out-of-state master plumbers and plumbing contractors (Idaho journeyman prerequisite plus contractor exam)

Your out-of-state credentials give no advantage. You meet the destination's requirements from scratch.

An out-of-state master plumber or plumbing contractor receives no credit toward Idaho's Plumbing Contractor certificate. The applicant must first hold an active Idaho Plumbing Journeyman certificate - obtained either through the journeyman Reciprocity Pathway (Montana, Oregon, Washington) or by passing the Idaho journeyman exam with out-of-state hours credited - and then file the contractor application ($22.50), receive exam approval, and pass the four-hour Idaho Plumbing Contractor examination through PSI (100 questions: 60 from the DOPL Contractors' Business and Law Reference Manual, 40 code and sizing points from the 2017 Idaho State Plumbing Code / 2015 UPC; 75% to pass; $75 fee). After passing, the applicant files proof of a $2,000 surety (compliance) bond and pays the $147 certificate fee. Idaho Code 67-9409 lets DOPL require its examination of universal-licensure applicants, and the Plumbing Board has adopted no procedure that waives the contractor exam. Applications expire one year after filing if the exam is not passed.

Exam flags: the contractor examination is a single test whose content is 60% business/law and 40% plumbing code and sizing, so both flags are set. Fee conflict: Idaho Code 54-2616 lists the contractor certificate fee as $75 initial / $36 renewal, but DOPL's fee table and form charge $147 / $108. Military members, veterans and spouses holding an out-of-state contractor or master license may instead apply for licensure by endorsement under Idaho Code 67-9406. A DOPL contractor registration under Idaho Code Title 54, Chapter 52 may additionally be needed to contract for work; it is separate from this Plumbing Board certificate.

At a glance

Trade exam
Required
Law / code exam
Required
Out-of-state hours
Do not count

What you must already have

  • Must hold an active Idaho Plumbing Journeyman certificate of competency before applying (IDAPA 24.39.20.100.03).

What you'll do to get licensed in Idaho

  1. 1Application fee. Pay the application fee ($22.50). DOPL contractor application processing fee (Idaho Code 54-2614).
  2. 2Exam fee. Pay the exam fee ($75). Plumbing Contractor examination fee, paid per attempt.
  3. 3Trade exam. Pass the destination's trade exam. Idaho Plumbing Contractor examination (4 hours, 100 questions, open book; 8 code questions plus 8 sizing questions worth 4 points each from the 2017 ISPC / 2015 UPC; 75% to pass).
  4. 4Law / code exam. Pass a law, rules, or code exam. Business and law portion of the same contractor examination: 60 questions drawn from the DOPL Contractors' Business and Law Reference Manual.
  5. 5Surety bond. Post a surety bond ($2,000). Compliance (surety) bond of $2,000 filed after passing the exam and kept in force for the whole certificate period; proof of renewal is required to renew the certificate.
  6. 6License fee. Pay the license or certificate fee ($147). Initial Plumbing Contractor certificate fee, three-year term (renewal $108; inactive renewal capped at $36 by statute).

Published fees on this path total $244.50, excluding exam-vendor fees, bonds, and insurance.

What you'll need to buy or arrange

Exam preparation

Most boards contract PSI, Prov, or ICC for exams. Check which code edition the exam is written to before buying a prep course.

  • Trade exam
  • Law / code exam

Surety bond

A license or contractor bond is bought from a surety, not the state. Price is a small percentage of the bond amount and depends on your credit.

  • Surety bond · $2,000

How Idaho licenses master plumbers

Idaho master plumber · “Plumbing Contractor (Certificate of Competency)

Statewide license

Verified September 16, 2026· 5 sources

Issued by Idaho Division of Occupational and Professional Licenses (Idaho State Plumbing Board)

Idaho has no master plumber title. The level above journeyman is the Plumbing Contractor certificate of competency, which Idaho Code 54-2611 defines as a person ('any person, or a member, representative or agent of a firm') who has passed the contractor examination; the contractor application confirms 'a plumbing contractor may be licensed as an individual', so it is treated here as the master-equivalent credential. IDAPA 24.39.20.100.03 requires the applicant to hold an active Idaho Plumbing Journeyman certificate, pass the Board-designated contractor exam (60% business and law, 40% code and sizing, 75% to pass), and file a $2,000 compliance bond; the initial certificate fee is $147 for a three-year term. A contractor may represent only one business at a time. No out-of-state contractor or master license is reciprocated at this level: the form has no reciprocal application type and the Montana, Oregon and Washington agreements cover journeymen only.

Moving to IdahoLeaving Idaho

Why Wyoming has nothing to transfer

Wyoming master plumber

Licensed by cities and counties

Verified September 16, 2026· 13 sources

Wyoming issues no master plumber or plumbing contractor license; the State Fire Marshal's electrical program is the only statewide trade licensing and it has no plumbing component. The master credential exists only in city ordinances: Cheyenne's Master (8,000 apprentice hours plus 6,000 journeyman hours and an ICC/NICET/NASCLA exam), Casper's Master Plumber (apprenticeship or four years plus five years as a journeyman or master, ICC G27-N), Laramie's master plumbing certificate of qualification (three years beyond journeyman, city exam), Gillette's Master Plumber (five years plus the ICC exam), Sheridan's Master Plumber (2018 ICC G27 with Gas) and Jackson's Master Certificate of Qualification (ICC G-series National Standard exam plus time in service). In every one of these cities a plumbing contractor must be or employ a master of record, and the contractor license is a separate business license with fees from $150 to $300 plus insurance or bond. No city accepts an out-of-state master license: Casper, Gillette and Jackson reciprocate only with other Wyoming jurisdictions, Sheridan refuses all outside licenses, Cheyenne's Board has undefined discretion, and Laramie may waive its exam for an equivalent certificate from any governmental agency. Rock Springs registers contractors for $125 with proof of insurance and tests nobody.

How local licensing works in Wyoming

How local licensing works. There is no state plumbing board; each city's ordinance defines its own master-level license and the plumbing contractor license it qualifies. The reciprocity statute the cities cite reaches only other Wyoming jurisdictions, and no city publishes a route that honours another state's master plumber or plumbing contractor license.

Cheyenne. A Master level craft employee license (12.1.8) requires 4 years/8,000 hours documented as an apprentice (or certified equivalent training) plus 3 years/6,000 hours documented as a journeyman and passing results on a current ICC, NICET or NASCLA exam from the Board's list. Fees are $50 application plus $50 initial and $25 renewal. A Plumbing (C1) contractor - covering plumbing and pipe-fitting systems other than fire sprinklers - may be licensed only if it always employs a full-time master or qualified supervisor of that class, who may represent only one contractor (13.0); the C1 tested contractor license costs $50 application plus $200 initial and $75 renewal. Reciprocity is at the Board's discretion (3.3.2/3.5.1) with no published partner list and a statute limiting it to Wyoming jurisdictions.

Casper. Master Plumber ($75 new, $37.50 renewal) requires a federally recognized plumbing apprenticeship or four years in a Casper-licensed plumbing shop plus five years as a journeyman or master plumber in a Casper-licensed shop, and proof of passing ICC G27-N or equivalent. A Plumbing Contractor license ($300/$150) covers any plumbing work including steam and water boilers, must be backed by a full-time licensed master plumber, and requires $250,000/$500,000/$250,000 liability insurance. Reciprocal Master/Journeyman licenses ($50/$25) are limited to holders of a current license from another Wyoming jurisdiction with comparable testing.

Laramie. A master plumbing certificate of qualification requires three years as a journeyman (Table 15.24.020-1) and the building official's examination ($5 per attempt), or is issued without exam on presentation of a certificate from another governmental agency whose exam the board of examiners finds at least equal. All plumbing contractor work must be performed by or under the supervision of a master plumbing certificate holder, who must be available to the building official within 24 hours. The Plumbing Contractor license costs $300 new and $35 renewal and requires a business location and telephone, a $500,000 combined single limit insurance certificate naming the City and a Wyoming Workers' Compensation certificate of good standing; licenses and certificates run January 1 - December 31.

Gillette. Master Plumber ($50 new, $50 renewal) requires five years of approved experience and passing ICC examination results. A Class D Plumbing Contractor ($150/$50) works under the 2024 IPC, may not do gas pipefitting on its plumbing license, and must designate a Master of Record - a full-time employee or owner licensed as a Master Plumber, able to reach any job site within 48 hours and replaced within 60 days if they leave. Reciprocity (5-III-1(d)) is limited to active, good-standing licenses from other Wyoming local governments, with testing waived on proof of the ICC plumbing or contractor exam and no fee charged.

Sheridan. Master Plumber ($50 new, $50 annual) acts as Master of Record for a plumbing company, must show they meet the Plumbing Contractor requirements (2018 ICC G27 exam, four-year journeyman plumber verification on Form JP, two-year project verification on Form A) and pass the 2018 ICC G27 Master Plumber with Gas exam. The Plumbing Contractor license ($200 new, $200 annual) also needs a $1,000,000 liability insurance certificate and a $10,000 license and permit bond, and every plumbing business must hold both a contractor license and a Master of Record. The City does not accept licenses from other cities, towns, counties or states.

Jackson. The Master Certificate of Qualification card is the prerequisite for a Plumbing Contractor license and is the only individual card the Town still issues. It is obtained by passing the ICC National Standard trades exam through Pearson VUE (only G-series tests based on the 2018 I-Codes are accepted) and meeting the time-in-service requirement in JMC 15.36.050, or by reciprocity for someone 'currently licensed and in good standing in a Wyoming jurisdiction that meets our licensing requirements'. Applications go through the SmartGov portal with a 30-day processing window; the contractor license then requires the bond and insurance in JMC 15.36.035 and renews every December 31, while the Master COQ card renews triennially with six hours of ICC-accredited continuing education. Licensing covers only work inside Town limits.

Rock Springs. Contractors register with the Building Inspection Office ($125 fee and a certificate of insurance naming the City) before working; no master license or exam exists.

Moving to WyomingLeaving Wyoming

Common questions

Do I have to take the Idaho master plumber exam if I'm licensed in Wyoming?
Yes. Idaho requires the trade exam on this path, plus a law or code exam.
What does it cost to get a Idaho master plumber license from Wyoming?
Published fees on this path total $244.50, not counting exam vendor fees or bonds.
Do my Wyoming work hours count in Idaho?
No. Idaho does not credit out-of-state hours on this path.
Does it work the other way, from Idaho to Wyoming?
Not necessarily. Reciprocity is directed. Going from Idaho to Wyoming, the mechanism is not applicable.

Sources

  1. Idaho Code Title 54, Chapter 26 - Plumbing and Plumbers · Idaho Code 54-2610, 54-2611, 54-2614, 54-2616, 54-2617 · Idaho Legislature · Statute · verified September 16, 2026
  2. Idaho Code 67-9406 - Licensure by Endorsement - Members of the Military, Veterans, and Spouses · Idaho Code 67-9406 · Idaho Legislature · Statute · verified September 16, 2026
  3. Idaho Code 67-9409 - Universal Licensure · Idaho Code 67-9409 · Idaho Legislature · Statute · verified September 16, 2026
  4. Idaho State Plumbing Board - Division of Occupational and Professional Licenses · Idaho Division of Occupational and Professional Licenses (DOPL) · Agency Page · verified September 16, 2026
  5. Idaho State Plumbing Board - Program Information and Exams · Idaho Division of Occupational and Professional Licenses (DOPL) · Agency Page · verified September 16, 2026
  6. IDAPA 24.39.20 - Rules Governing Plumbing · IDAPA 24.39.20.100 · Idaho Division of Occupational and Professional Licenses (DOPL) · Admin Rule · verified September 16, 2026
  7. Idaho Plumbing Contractor Application and Instructions (revised July 1, 2023) · Idaho Division of Occupational and Professional Licenses (DOPL) · Form · verified September 16, 2026
  8. Idaho DOPL Plumbing Exams Information Bulletin (updated September 23, 2024) · Idaho Division of Occupational and Professional Licenses (DOPL) · Other · verified September 16, 2026

Verified dates are when a person last opened each source and confirmed the facts above. Cite the board, not us.

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