Oklahoma Construction Industries Board · checked 2026-10-21
Oklahoma Plumber License Requirements
Statewide plumbing journeyman and contractor licenses issued by the Construction Industries Board. Plumbing contractor: 4 years of experience at minimum, plus an exam.
- 1PJ · Plumbing journeyman 3 years
- 2PC · Plumbing contractor 4 years
License levels in Oklahoma
The Oklahoma path has 2 steps on this page: Plumbing journeyman and Plumbing contractor. The source states the time in years.
| Level | Experience | Classroom | Time from start | Exam | Fees |
|---|---|---|---|---|---|
| PJ Plumbing journeyman | 3 years | — | 3 years | Yes | Not printed |
| PC Plumbing contractor | 4 years | — | 4 years | Yes | Not printed |
Plumbing journeyman (PJ)
At least 18, and three years of experience in the plumbing trade while employed by a licensed plumbing contractor (or three years of military plumbing experience, or a current out-of-state license). A 1,000-hour approved plumbing program can replace two years, a 500-hour program one year. Exam with a third-party vendor after approval. Source: Oklahoma CIB, Become a plumbing journeyman.
Plumbing contractor (PC)
The journeyman requirements plus one more year: four years in total unless education substitutes. Contractors must file a bond and insurance to activate the license, with the CIB listed as certificate holder; the pages read print no amounts. Source: Oklahoma CIB, Become a plumbing contractor.
Exam
2 of the 2 levels listed here require an exam: Plumbing journeyman and Plumbing contractor. The source does not print a pass mark.
Fees
The Oklahoma source read prints no dollar amounts for this license. The CIB pages read print no dollar amounts.
Reciprocity
The Oklahoma source names 1 partner state for plumber licenses: Arkansas. The CIB has a plumbing reciprocity agreement with Arkansas for journeyman licenses. Source: Oklahoma CIB, Plumbing.
How Oklahoma compares
Among the 25 states on this site that state a minimum time to the top plumber credential, Oklahoma ranks 13 of 25 from shortest (2 years) to longest (9 years). California, Florida, Illinois and Arizona set the same 4 years.
Same trade elsewhere: California · Texas · Florida · Illinois · Ohio. All states side by side: Plumber license requirements by state.
Other trades in Oklahoma
- Electrician: Unlimited electrical contractor: 6 years of experience at minimum, plus an exam.
- HVAC: Mechanical contractor: 4 years of experience at minimum, plus an exam.
- General contractor: Oklahoma issues no state general contractor license.
All covered trades on one page: Oklahoma trade licenses.
Background reading: From apprentice to master: how long each state takes · Trade license reciprocity between states.
Questions
Who issues the plumber license in Oklahoma?
Oklahoma Construction Industries Board (CIB). Statewide plumbing journeyman and contractor licenses issued by the Construction Industries Board.
How long does it take to qualify for the Plumbing contractor in Oklahoma?
4 years by this site's count. The journeyman requirements plus one more year: four years in total unless education substitutes. Contractors must file a bond and insurance to activate the license, with the CIB listed as certificate holder; the pages read print no amounts.
Does Oklahoma have plumber license reciprocity?
Yes, with Arkansas. The CIB has a plumbing reciprocity agreement with Arkansas for journeyman licenses.
Sources and last checked
| What | Source | Checked |
|---|---|---|
| Issuing authority | Oklahoma Construction Industries Board (CIB) | 2026-10-21 |
| PJ requirements | Oklahoma CIB, Become a plumbing journeyman | 2026-10-21 |
| PC requirements | Oklahoma CIB, Become a plumbing contractor | 2026-10-21 |
| Law cited | Oklahoma Plumbing License Law (CIB pages; statute not read) | 2026-10-21 |
This page summarises what the Oklahoma source said on 2026-10-21. It is general information, not legal advice; the board's own page and the statute are the authority and can change. Confirm with Oklahoma Construction Industries Board before applying. The free official route is the board itself: its page, application forms and staff answer eligibility questions.