Utah Master Plumber License Requirements (2026)

The Utah Division of Professional Licensing (DOPL) Plumbers Board licenses plumbers statewide under Utah Code Title 58 Chapter 55 and Utah Admin. Code R156-55a. Utah issues four individual plumber credentials — Apprentice Plumber, Residential Journeyman Plumber, Journeyman Plumber, and Master Plumber — and licenses plumbing contracting businesses through the DOPL Contractors Board with a Master Plumber serving as the qualifying individual. The Residential Journeyman path requires 6,000 hours of supervised residential plumbing experience; the full Journeyman path requires 8,000 hours plus 576 classroom hours; and the Master Plumber credential then requires two additional years as a licensed Journeyman plus a passing score on the Prometric Master Plumber examination at 70%.

Regulatory Body Profile

Utah Division of Professional Licensing — Contractors Board (DOPL) is the statutory authority responsible for issuing and enforcing this license under Utah Code Title 58 Chapter 55 (Utah Construction Trades Licensing Act); Utah Admin. Code R156-55a. The Utah Division of Professional Licensing (DOPL) Contractors Board licenses general contractors, electricians, plumbers, and mechanical contractors statewide, adopts the International Building Code by reference, and conducts disciplinary proceedings under Title 58 Chapter 55.

Official portal: https://dopl.utah.gov/contractor/
Address: 160 East 300 South, Salt Lake City, UT 84111
Phone: (801) 530-6628

The Eligibility Audit

Eligibility begins with two baseline checks: the applicant must be 18 or older and must provide a valid Social Security Number. No Utah residency requirement; out-of-state applicants accepted.

Good moral character

DOPL conducts a fitness review on every applicant. Felony convictions and prior license actions are reviewed individually by the Plumbers Board.

Background investigation

Mandatory criminal history disclosure on the application; DOPL may require fingerprint-based BCI/FBI background checks for applicants with disclosed convictions.

Disqualifying conditions

Construction- or plumbing-fraud convictions within the prior five years
Prior plumber license revocation in any state

Experience and Education Standards

At least four years (8,000 hours) of supervised plumbing work plus 576 classroom hours to qualify as a Journeyman Plumber, then two additional years as a licensed Journeyman to qualify for the Master Plumber examination; Residential Journeyman path requires only 6,000 supervised hours has to be evidenced and confirmed. Retain payroll, tax, project, or supervisor records, since the board may audit the experience claimed.

Accepted proof of experience or eligibility

DOPL Verification of Apprenticeship Hours form signed by each licensed Master Plumber supervisor
Approved plumbing apprenticeship program completion certificate (UA Local 140, ABC, or equivalent)
Classroom hours transcript from the approved plumbing training program
W-2 statements or pay stubs covering the qualifying period

Education substitution

Accredited plumbing technology associate degrees substitute for portions of the classroom hours requirement on a sliding scale set by DOPL rule. On-the-job hours are not substitutable.

The Exam Syllabus

Testing is handled by Prometric (under contract to DOPL). The applicant has to pass each part listed here before the credential is granted:

Utah Journeyman Plumber Examination — International Plumbing Code, Utah amendments, theory — 80 questions, 240 minutes, passing score 70%
Utah Master Plumber Examination — IPC, Utah amendments, business and law, advanced theory — 100 questions, 300 minutes, passing score 70%

Examination fee: $77 per Prometric exam part paid on the day of testing.

Retake policy: Failed exams may be re-taken after a 30-day waiting period by paying a new $77 fee. Each application remains open for one year.

Bonding, Insurance & Financial Security

Before the license is issued, the applicant must file a $50,000 contractor license surety bond in the form prescribed by the DOPL.

General liability

General liability is mandatory at the contractor business level. Most commercial owners contractually require $1,000,000/$2,000,000.

Workers' compensation

Workers compensation is mandatory in Utah under Utah Code §34A-2-103 for any contractor with one or more employees.

Additional financial requirements

Plumbing contractor business licenses require the same $50,000 contractor surety bond as general contractors. Individual Journeyman and Master Plumber credentials do not carry a bonding requirement.

Schedule of Fees

Fee	Amount
Application (non-refundable)	$100
Examination	$77
Initial license	$100
Renewal (every 2 years)	$64

Renewal and Continuing Obligations

The Utah Master Plumber (and Journeyman Plumber) runs on a 2 years renewal cycle. The current renewal fee is $64. Utah Master and Journeyman Plumber credentials renew every two years on November 30 of even-numbered years.

Continuing education: 12 hours of DOPL-approved continuing education each two-year renewal cycle, including a code-update component covering the Utah-adopted IPC.

Downloadable Asset

2026 Utah Plumber License Roadmap (PDF) — a printable step-by-step checklist for the application process.

Download the PDF roadmap →

Out-of-State Reciprocity

For this classification, Utah does not recognize the NASCLA Accredited Examination.

Reciprocal State	Accepted Exam	Conditions
Arizona	Trade exam waived	Bilateral DOPL–Arizona ROC reciprocity for active master plumbers in good standing.
Nevada	Trade exam waived	Bilateral DOPL–Nevada State Contractors Board reciprocity for matching plumbing classifications.
Idaho	Trade exam waived	Bilateral DOPL–Idaho Division of Building Safety reciprocity for journeyman and master plumbers.
Colorado	Trade exam waived	Bilateral DOPL–Colorado Examining Board of Plumbers reciprocity.
Wyoming	Trade exam waived	Bilateral DOPL–Wyoming reciprocity for active master plumbers.

Utah maintains bilateral plumber reciprocity with Arizona, Nevada, Idaho, Colorado, and Wyoming. Reciprocal applicants still must pass the Utah-specific portion covering state amendments to the IPC.

Weighing more than one jurisdiction? The national hub compares Plumber license requirements in every state — exam, bond, fee, and experience thresholds side by side.

The Application Roadmap

Register as an Apprentice Plumber. File the Apprentice Plumber registration with DOPL and enroll in an approved plumbing apprenticeship program.
Choose Residential or full Journeyman path. Residential Journeyman: 6,000 supervised hours covering residential work only. Full Journeyman: 8,000 supervised hours plus 576 classroom hours covering residential and commercial work.
Complete the supervised hours and classroom hours. On-the-job training under a licensed Master Plumber plus the required classroom hours through an approved program.
Pass the Prometric Journeyman Plumber examination at 70%. Score 70% or better on the 80-question exam covering the IPC, Utah plumbing amendments, and theory.
Work as a licensed Journeyman for two additional years. Document two years of journey-level plumbing work after receiving the full Journeyman credential.
Pass the Prometric Master Plumber examination at 70%. Score 70% or better on the 100-question exam covering the IPC, Utah amendments, business and law, and advanced theory.
Receive the Master Plumber credential and obtain the P200 Plumbing Contractor business license (if self-employed). DOPL issues the credential after the exam is passed. To operate a business, file a separate Contractors Board application with the $50,000 bond.

Pre-Application Checklist

Have each of the following squared away before the packet goes to DOPL:

☐ Apprentice Plumber registration with DOPL
☐ Documentation of 8,000 supervised hours (6,000 for Residential) and 576 classroom hours
☐ Prometric Journeyman Plumber exam pass certificate at 70%+
☐ Two years of additional experience as a licensed Journeyman
☐ Prometric Master Plumber exam pass certificate at 70%+
☐ DOPL Master Plumber application with $100 fee
☐ P200 Plumbing Contractor business license with $50,000 bond (if self-employed)

Where Applications Stall

The following pitfalls summarize the issues most likely to delay, return, or derail a Utah Plumber application based on the published board instructions and source materials cited on this page.

Logging unsupervised hours

Only hours worked under direct supervision of a licensed Master Plumber count. Solo or unsupervised work is rejected by DOPL.

Choosing the Residential path then needing commercial scope

A Residential Journeyman is limited to residential work. Upgrading to full Journeyman requires the additional 2,000 supervised hours, the 576 classroom hours, and a new exam.

Studying the wrong IPC edition

Utah adopts the IPC on a delayed cycle and adds state-specific amendments. Confirm the current Utah-adopted edition before purchasing study materials.

Confusing tradesman with contractor

The Master Plumber credential authorizes you as an individual; you still need a separate P200 Plumbing Contractor business license with the $50,000 bond to operate as a business.

Letting CE lapse

12 hours of DOPL-approved CE every two years is mandatory. Missing CE blocks renewal and may force re-examination after lapse.

Recommended Study Materials

The following references are cited by the regulator, used in the application process, or commonly used to prepare for the trade scope. Listed for reader convenience; CLR receives no compensation for these recommendations.

International Plumbing Code (IPC), Utah-adopted edition — International Code Council. Primary technical reference. Open-book at the Prometric test center.
Audel Plumbers Pocket Manual — Wiley. Widely used by Utah applicants for sizing, venting, and DWV calculations.
Utah Code Title 58 Chapter 55 and Utah Admin. Code R156-55a — State of Utah. Licensing law and Utah-specific IPC amendments.

Other Utah Trade Licenses

Looking at a different trade? CLR also publishes these Utah licensing guides:

Common Questions

How long does it take to become a Master Plumber in Utah?

Minimum six years: four years (8,000 hours) of supervised apprenticeship plus 576 classroom hours to reach the full Journeyman credential, then two additional years as a licensed Journeyman before sitting for the Master Plumber exam.

What is the difference between a Residential Journeyman and a full Journeyman Plumber in Utah?

A Residential Journeyman Plumber requires only 6,000 supervised hours and is limited to residential plumbing work. A full Journeyman Plumber requires 8,000 supervised hours plus 576 classroom hours and may perform residential and commercial plumbing work.

Does Utah reciprocate plumber credentials?

Yes. DOPL maintains bilateral plumber reciprocity with Arizona, Nevada, Idaho, Colorado, and Wyoming. Reciprocal applicants must still pass the Utah-specific portion covering state amendments to the IPC.

Do I need both a Master Plumber credential and a contractor license?

Yes if you operate a self-employed plumbing contracting business. The Master credential authorizes you as an individual; the P200 Plumbing Contractor business license authorizes the business to bid and contract and requires the $50,000 surety bond.

How often does the Utah Master Plumber credential renew?

Every two years on November 30 of even-numbered years. Renewal requires 12 hours of DOPL-approved continuing education with a code-update component.

Primary Sources

Regulatory requirements on this page are drawn from the official board, statute, and exam-provider materials listed below.

Verified 2026-06-06 · Next scheduled review 2026-09-04