Navigating plumbing licensure in Idaho requires precision, as every plumber, from apprentice to contractor, must register or obtain a specific license from the Idaho Division of Occupational and Professional Licenses (DOPL) State Plumbing Board to legally work in the state. This guide provides a step-by-step path through the requirements, from documenting your first apprentice hours to applying for a contractor license. It covers the specific license tiers, experience pathways, exam details, and fees you will encounter.
Do You Need a Plumbing License in Idaho?
Yes, the Idaho Division of Occupational and Professional Licenses (DOPL) State Plumbing Board requires a state-issued license or registration for any individual or business performing plumbing work. This mandate, established under Idaho Statutes Title 54, Chapter 26, applies to all plumbing installations, repairs, and alterations. Working without the proper credential can result in significant penalties.
Idaho Plumbing License Classifications and Tiers
The Idaho State Plumbing Board issues several distinct license and registration types, each with a specific scope of work.
- Plumbing Contractor: A licensed plumbing contractor can engage in the business of plumbing, including contracting, planning, and supervising plumbing work. They may employ journeyman and apprentice plumbers.
- Plumbing Journeyman: A licensed journeyman plumber is qualified to perform plumbing work under the general supervision of a licensed plumbing contractor.
- Plumbing Apprentice (Registration): An apprentice is an individual learning the trade who must be registered with the state and work under the direct supervision of a licensed journeyman or contractor.
- Specialty Contractor: This license allows a contractor to perform work in a limited, specialized area of plumbing, such as water pump installation or lawn sprinkler systems. The scope is strictly limited to the specialty.
- Specialty Journeyman: A licensed specialty journeyman is qualified to perform work within a specific plumbing specialty, supervised by a licensed specialty or general plumbing contractor.
- Specialty Apprentice (Registration): A specialty apprentice learns a specific plumbing specialty and must be registered and supervised by an appropriately licensed journeyman or contractor.
Steps to Getting Your Idaho Plumbing License
The path to becoming a licensed plumber in Idaho follows a clear progression, from initial registration to journeyman and contractor-level licensing.
- Register as a Plumbing Apprentice: The first official step is to register with the DOPL to legally begin accumulating work experience.
- Meet Experience and Education Requirements: Accrue the necessary hours of on-the-job training and, if applicable, complete the required classroom instruction.
- Pass the Required Plumbing Examination: After qualifying, you must pass the state-approved trade exam to demonstrate competency.
- Submit Your License Application: Once you have met the experience and exam requirements, you can formally apply for your journeyman license.
- Advance to a Contractor License: Experienced journeymen can apply to become plumbing contractors, which involves additional steps.
1. Registering as a Plumbing Apprentice in Idaho
To begin your career, you must register as a plumbing apprentice with the Idaho DOPL. This registration is mandatory for your work hours to be officially counted toward journeyman licensure. Apprentices must work under the employment and supervision of a licensed plumbing contractor and the direct supervision of a licensed journeyman or contractor.
The initial registration fee for a Plumbing Apprentice is $50 for a 5-year term. For a Specialty Apprentice, the fee is $30 for a 3-year term.
2. Meeting Journeyman Plumber Experience Requirements
To qualify to sit for the Journeyman Plumber exam, you must meet specific experience and education criteria. The Idaho State Plumbing Board provides two distinct pathways:
- Pathway A: Complete at least 8,000 hours of practical work experience as a registered apprentice AND complete 4 years of approved plumbing-related classroom instruction.
- Pathway B: Complete at least 16,000 hours of practical work experience as a registered apprentice.
This experience must be documented and verified as part of your application. The requirements for specialty journeyman licenses follow a similar pattern but are specific to the scope of the specialty.
3. Applying for a Journeyman Plumber License
Once you have completed the required experience and schooling (if applicable), you can apply for approval to take the journeyman exam. The application process involves submitting a completed form to the DOPL, along with documentation verifying your work hours and educational history.
4. Taking the Idaho Plumbing License Exam
Idaho requires journeyman and contractor candidates to pass a standardized trade examination.
- Exam: The required test is the International Association of Plumbing and Mechanical Officials (IAPMO) trade examination.
- Administrator: The exam is administered by a state-approved testing service. Per the DOPL, this service is PSI.
- Scheduling: After your application is approved by the board, you will receive instructions on how to schedule your exam directly with the administrator.
- Content: The exam covers topics essential to the trade, including state plumbing codes, safety, fixtures, water heaters, drainage systems, and vents.
An exam fee is paid directly to the testing administrator and is separate from the license application and issuance fees.
5. Advancing to an Idaho Plumbing Contractor License
After gaining experience as a licensed journeyman, you may choose to advance to a Plumbing Contractor license. This allows you to own and operate a plumbing business and hire other plumbers. The specific experience requirements and application process for a contractor license are set by the State Plumbing Board. Confirm the current requirements with the DOPL before applying. The process will include submitting a new application, paying the associated fees, and potentially passing a contractor-specific exam.
6. Specialty Plumbing License Requirements
The process for obtaining a Specialty Journeyman or Specialty Contractor license mirrors the general licensing path. Applicants must register as a specialty apprentice, accumulate the required hours of on-the-job experience within their specific field, and pass an examination limited to the scope of that specialty.
Idaho Plumbing License Fees (By Tier)
All fees are paid to the Idaho Division of Occupational and Professional Licenses (DOPL). Exam fees are paid separately to the testing vendor.
| License Type | Application Fee | Initial License Fee | Renewal Fee | Reinstatement Fee | Term Length |
|---|---|---|---|---|---|
| Plumbing Contractor | $22.50 | $147.00 | $108.00 | $147.00 | 3 Years |
| Plumbing Journeyman | $22.50 | $29.40 | $21.60 | $29.40 | 3 Years |
| Plumbing Apprentice | $22.50 | $50.00 | $50.00 | N/A | 5 Years |
| Specialty Contractor | $22.50 | $147.00 | $108.00 | $147.00 | 3 Years |
| Specialty Journeyman | $22.50 | $29.40 | $21.60 | $29.40 | 3 Years |
| Specialty Apprentice | $22.50 | $30.00 | $30.00 | N/A | 3 Years |
Fees are based on the DOPL State Plumbing Board's published fee schedule and are subject to change. Confirm current amounts before submitting payment.
Idaho Plumbing License Insurance and Bond Requirements
The Idaho State Plumbing Board does not require a surety bond or proof of general liability insurance as a condition of issuing a plumbing license.
However, it is critical to understand that plumbing contractors are often also required to register as a general construction contractor. This separate registration, governed by Idaho law, may have its own surety bond and insurance requirements. Business owners must confirm current bond and insurance minimums with the Idaho DOPL to ensure full compliance with all applicable state laws.
Idaho Plumbing License Renewal and Continuing Education
All Idaho plumbing licenses must be renewed to remain active.
- Renewal Cycle: Contractor and Journeyman licenses have a 3-year renewal cycle. Apprentice registrations have a 5-year renewal cycle. The Board may use a staggered schedule for renewals.
- Continuing Education (CE): Continuing education is required for all plumbing license renewals in Idaho. The specific number of required hours and approved course subjects are set by the Idaho State Plumbing Board per IDAPA 24.39.20 (Rules Governing Plumbing). You must confirm the current CE requirements directly with the board before your license expiration date.
Failing to renew on time can result in late fees and potential license reinstatement procedures.
Does Idaho Have Reciprocity for Plumbing Licenses?
Idaho does not offer broad or automatic reciprocity for plumbing licenses from other states. However, the State Plumbing Board has provisions for licensure by endorsement. An applicant who holds a current, active plumbing license in another state may be eligible for an Idaho license if they can demonstrate they have passed an examination substantially equivalent to Idaho's. The board reviews these applications on a case-by-case basis. Out-of-state plumbers should contact the Idaho DOPL directly to determine their eligibility and receive application instructions.