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How to get a plumber license in Oklahoma

Hours, exam, fees, renewal and continuing education for Oklahoma plumbing licenses, pulled from official OK sources and checked .

Quick answer
  • Licensing body: Oklahoma Construction Industries Board (CIB) — Plumbing
  • State journeyman license: Yes (CIB licenses plumbing apprentices, journeymen and contractors statewide under the Plumbing License Law / Title 158 Chapter 30.)
  • Journeyman Plumber: At least 18. Three years experience in the plumbing trade while employed by a licensed plumbing contractor (or equivalent military experience), or a current out-of-state plumbing license in good standing. Approved education may substitute: 1,000 classroom hours ≈ 2 years; 500 hours ≈ 1 year. Work as journeyman must be under a licensed plumbing contractor.
  • Exam: see below, via PSI (after CIB approval)
  • Code edition: Exam standards follow OAC 158:30 installation standards / International Plumbing Code references used by the Board. Confirm PSI candidate bulletin after eligibility.

Requirements by license

Journeyman Plumber

ExperienceAt least 18. Three years experience in the plumbing trade while employed by a licensed plumbing contractor (or equivalent military experience), or a current out-of-state plumbing license in good standing. Approved education may substitute: 1,000 classroom hours ≈ 2 years; 500 hours ≈ 1 year. Work as journeyman must be under a licensed plumbing contractor.Source: oklahoma.gov · as of
ExamPSI (after CIB approval). Written questions and drawings/charts. Pass each part with at least 75%. After application approval, CIB gives third-party testing vendor contact info.Source: oklahoma.gov · as of
Fees
  • Journeyman application: $25
  • Initial journeyman license: $50
  • Renewal journeyman license: $75
  • Renewal late fee: $25
Source: oklahoma.gov · as of
RenewalEvery year. Renew annually with fee and CE. Late renewal adds $25.Source: oklahoma.gov · as of
CE to renew6 hours per 3 years
  • CIB Plumbing Examiners Committee–approved CE
Complete at least 6 hours of approved CE every 3 years (within the 36 months preceding expiration). Only CIB-approved courses count.
Source: oklahoma.gov · as of · Provider info: oklahoma.gov

License types in Oklahoma

  • Apprentice plumber
  • Journeyman plumber (unlimited)
  • Residential journeyman plumber
  • Plumbing contractor
Source: oklahoma.gov · as of

Reciprocity (licensed in another state?)

Out-of-state licenses may expedite processing or qualify under written reciprocity agreements (e.g., Arkansas application form listed on CIB forms). Still must meet Oklahoma qualifications and fees.Source: oklahoma.gov · as of

What we couldn't confirm yet

We only publish what we can tie to an official source. These items aren't published anywhere we could verify, so ask the office listed:

  • PSI exam fee charged to the candidate (separate from CIB application/license fees).
    Ask: CIB / PSI (contact source, as of )

FAQ

Does Oklahoma license plumbing journeymen statewide?

Yes. The Construction Industries Board licenses apprentices, journeymen and contractors.

How much experience does an OK journeyman need?

Generally three years under a licensed plumbing contractor (education may substitute for part of that time).

Already licensed? See Oklahoma plumber license renewal & CE requirements.

Other states

Compare every state side by side: license requirements by state · renewal & CE by state.