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State files updated Oct 31, 2026
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Home / Plumbers / Oklahoma / License

Oklahoma journeyman plumber license

Plumber license: what CIB asks for once you're logging hours.3

How much experience do you need in Oklahoma?

3 years in the trade under a licensed plumbing contractor (school credit can replace part)1

Journeyman license
3 yrs3 years in the trade under a licensed plumbing contractor (school credit can replace part)
Contractor license
1 yrJourneyman requirements plus 1 year

Keep your own record of hours, employers and pay stubs. CIB can ask for proof when you apply.

What is the Oklahoma plumber exam like?

You take the state exam once the board approves your hours. The exam is given by PSI.12

How much does the plumber license cost?

Journeyman: $25 application, $50 initial, $75 yearly renewal; contractor: $30 application, $300 initial, $200 yearly renewal; apprentice: $5 application, $20 yearly registration1

How do you renew it?

Every year, on the last day of the birth month.1 Continuing education: 6 hours every 3 years for journeyman and contractor.1

Does a license from another state count in Oklahoma?

Only with states that have a written agreement with Oklahoma; license in good standing.1

License levels in Oklahoma

Apprentice (registered yearly); Journeyman (unlimited or residential); Contractor (unlimited or residential).

Ready to apply?

Applications, exam booking and hour forms are on CIB's site.

CIB license page

More for plumbers in Oklahoma

Sources

  1. Oklahoma Construction Industries Board (CIB): exam (oklahoma.gov, 2026-10-27)
  2. Oklahoma Construction Industries Board (CIB): exam provider (oklahoma.gov, 2026-10-27)
  3. Oklahoma Construction Industries Board (CIB): licensing (oklahoma.gov, 2026-10-27)