Plumbing apprenticeships in Oklahoma run on two registrations at once.
A registered program is registered with the U.S. Department of Labor's Office of Apprenticeship — Oklahoma has no State Apprenticeship Agency — and the UA lists locals in Oklahoma City and Tulsa.
Separately, the Construction Industries Board requires plumbing apprentices to register every year, because hours count toward a plumbing license only while you are registered, unless lawfully exempt.
Below: who offers programs, what registration costs, and how to apply.
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At a glance
Oklahoma has no State Apprenticeship Agency: the U.S. DOL Office of Apprenticeship registers and oversees registered apprenticeship programs in the state.
Yes — with the CIB, every year: a licensed contractor or approved school instructor signs each year's application, and hours count toward licensing only while you are registered, unless lawfully exempt.
In the fee schedule we read, the application is $5 and the registration $20.
The UA lists three Oklahoma locals: Local 344 (Oklahoma City), Local 430 (Tulsa) and Local 798 (Tulsa).
The directory confirms the locals, not each one's trade mix or apprenticeship intake.
Not established for Oklahoma by name: our research did not confirm which PHCC or ABC chapters or employers run registered plumbing apprenticeships in the state.
Nationally, PHCC offers apprenticeship content through an online learning academy.
The journeyman plumber exam takes age 18 plus three years of plumbing experience while employed by a licensed plumbing contractor — or approved schooling in place of part of it (a 1,000-hour approved program counts for two years) — and only hours worked while registered as a CIB apprentice count, unless lawfully exempt.
Register with the CIB as an apprentice when you start work; contact the UA local nearest you (Oklahoma City or Tulsa) about its program; ask PHCC and ABC about Oklahoma chapters and larger contractors about registered programs; and check a contractor's license through the CIB's public lookup before you sign on (address taken from the CIB site's navigation).
The annual registration a plumbing apprentice keeps with the CIB: a licensed contractor or approved school instructor signs each year's application, and in the fee schedule we read it is a $5 application plus a $20 registration.
Hours count toward licensing only while you are registered, unless lawfully exempt.
The exam takes age 18 and three years of plumbing experience while employed by a licensed plumbing contractor, with approved schooling substituting for part of it — a 1,000-hour approved program counts for two years.
A journeyman must be employed and supervised by a licensed plumbing contractor and may not contract or furnish labor and materials.
The license for contracting plumbing work in Oklahoma — the step above journeyman, since a journeyman may not contract on their own.
The contractor-level experience, exams and bond are on our Oklahoma plumbing license page.
Oklahoma has no State Apprenticeship Agency: registered apprenticeship programs there are overseen by the U.S. Department of Labor's Office of Apprenticeship, which registers and oversees programs in states without a recognized SAA through state field offices.
Each program's registered standards set the term, the wage schedule and the apprentice-to-journeyworker ratio; an apprenticeable occupation must require at least 2,000 hours of on-the-job learning, and program terms may be time-based, competency-based or a hybrid.
The only Oklahoma organizations our research confirmed by name are the three United Association locals the UA's directory lists in Oklahoma City and Tulsa — directory listings, not confirmed registered-program sponsors.
Our research did not compile a roster of every sponsor running a registered plumbing apprenticeship in the state, and it named no PHCC chapter, ABC chapter or individual employer program.
Whichever program you join, Oklahoma adds a second layer: the CIB apprentice registration covered below — it is what makes your hours count toward licensing, unless lawfully exempt.
“Registers and oversees programs in states without a recognized SAA through state field offices.”
Two registrations, and they are not the same thing.
A registered apprenticeship program is registered with the federal Office of Apprenticeship.
Separately, Oklahoma requires plumbing apprentices to register with the Construction Industries Board every year, and a licensed contractor or approved school instructor signs each year's application.
The point of that second registration is licensing credit: hours count toward licensing only when they are verifiable through apprentice registration, unless they were lawfully obtained while exempted.
The CIB licenses plumbers statewide — the registered apprentice, the journeyman plumber (unlimited or residential) and the plumbing contractor (unlimited or residential) — so the apprentice registration is the first rung of the state's own ladder, not a license in itself.
Supervision is capped while you hold it: a maximum of three apprentice plumbers can work under the supervision of a licensed plumber.
And finishing the program does not make you a journeyman: a registered apprenticeship earns a certificate issued by the registration agency — here the federal OA — while the journeyman license takes the experience and exam rules covered in the sections below.
“In order for apprentice work experience to be counted towards licensing, it must be verifiable through apprentice registration, unless lawfully obtained while exempted.”
The United Association's directory lists three Oklahoma locals: Local 344 in Oklahoma City, and Local 430 and Local 798 in Tulsa.
That directory confirms the locals exist — it does not confirm each local's trade split between plumbing, pipefitting and HVACR service, and our research did not read the locals' apprenticeship pages, so this page does not describe any local's intake, wages or application windows.
Nationally, the UA describes its apprenticeships as registered with the Department of Labor and typically lasting five years, covering plumbing, pipefitting, HVACR, welding and fire protection — which is exactly why the question to put to each Oklahoma local is which of those disciplines it trains in your area and whether it takes new plumbing apprentices this year.
For Oklahoma City and Tulsa, those three locals are the confirmed starting points; elsewhere in the state, ask the nearest local or the Office of Apprenticeship.
Our research confirmed no Oklahoma merit-shop program by name: no PHCC chapter, ABC chapter or individual employer program in the state appears in the sources we read.
Nationally, PHCC — the Plumbing-Heating-Cooling Contractors Association — offers apprenticeship content through an online learning academy, and ABC describes itself as founded on the merit shop philosophy and reports more than 24,000 members, but chapter-level program availability is decided chapter by chapter and was not verified for Oklahoma.
If a contractor or a chapter offers to train you, the test is registration: Oklahoma has no State Apprenticeship Agency, so a program only becomes a registered apprenticeship when the U.S. Department of Labor's Office of Apprenticeship registers it.
Ask which agency registered the program — if the answer is not the federal OA, ask more questions before you sign on.
The classroom side of a registered apprenticeship is related technical instruction.
Federally, DOL recommends — but does not require — a minimum of 144 hours for each year of apprenticeship; your program's registered standards set what it actually requires.
On the state side, approved schooling shortens the experience Oklahoma requires: plumbing journeyman exam applicants must be 18 and have three years of plumbing experience while employed by a licensed plumbing contractor, and the rules give a 1,000-hour approved program as counting for two years; the exam itself requires 75% on each part to pass.
Approved formal education can also move an apprentice early on the mechanical side of the trade: a registered mechanical apprentice as young as 17 who completes an approved formal education program may apply to sit for the HVAC limited journeyman exam — our research did not confirm a matching 17-year-old path on the plumbing side.
Our sources did not name the Oklahoma schools, colleges or training centers that deliver plumbing-related instruction, so ask each sponsor where its apprentices take classroom hours and check with the CIB which programs count as approved before you enroll.
Start with the likely training providers: contact the UA local nearest you — Local 344 in Oklahoma City, or Local 430 or Local 798 in Tulsa — and ask whether it runs a registered plumbing apprenticeship and when it takes new apprentices, and ask PHCC and ABC whether an Oklahoma chapter near you sponsors one.
Get each program's written standards before you sign: a registered apprentice must be at least 16 unless law sets a higher minimum, there is no federal maximum age, pay follows a progressively increasing wage schedule tied to skill, the probationary period may not exceed 25% of the program length or 1 year, whichever is shorter, and standards must state a numeric apprentice-to-journeyworker ratio.
When a licensed contractor hires you, file the CIB apprentice registration each year — in the fee schedule we read, the application is $5 and the registration $20 under the plumbing rules effective October 1, 2024, so confirm current fees with the CIB before you pay.
Before you sign with any contractor, check its license through the CIB's public 'Are They Licensed' search at cibverify.ok.gov — an address we took from the CIB site's navigation, not the search page itself.
This page summarizes the Oklahoma board pages, statutes, rules and other sources listed below, as read for this state-by-state plumbing apprenticeships series, current as of September 2026.
It is not a substitute for the instructions the Oklahoma Construction Industries Board (CIB) publishes.
For the rest of the picture in Oklahoma, see plumbing licensing in Oklahoma and HVAC apprenticeships in Oklahoma.
Not a license — a registration.
Oklahoma plumbing apprentices register with the Construction Industries Board every year, and a licensed contractor or approved school instructor signs each year's application.
Hours count toward licensing only when they are verifiable through that registration, unless they were lawfully obtained while exempted.
That registration is separate from the program's federal registration with the Office of Apprenticeship — which only a registered apprenticeship has.
In the fee schedule we read — the CIB plumbing rules effective October 1, 2024 — the apprentice application is $5 and the registration is $20.
Fees change, so confirm current amounts with the CIB before you pay.
Our research did not capture what Oklahoma programs charge or who pays it, so ask each program before you apply.
Each program's registered standards set the term; the UA describes its apprenticeships as typically lasting five years.
Federally, an apprenticeable occupation must require at least 2,000 hours of on-the-job learning, and programs may be time-based, competency-based or a hybrid.
Toward the license, journeyman exam applicants need three years of plumbing experience under a licensed plumbing contractor — countable only from your CIB registration, unless they were lawfully obtained while exempted.
Federal rules require registered programs to pay a progressively increasing wage schedule tied to the skill you acquire, and the entry wage may not be below the FLSA minimum wage where it applies.
The federal rule sets no percentage steps — each program's standards set the raises.
Our research did not collect Oklahoma-specific apprentice wage figures, so ask each sponsor for its written wage schedule before you apply.
A licensed plumber — and not more than three apprentices each.
Oklahoma allows a maximum of three apprentice plumbers under the supervision of one licensed plumber; on the mechanical side, the cap is three mechanical apprentices under the direct supervision of a licensed mechanical contractor or journeyman.
Your program's registered standards must also state a numeric apprentice-to-journeyworker ratio.
Sources
Sourced from the documents listed above.
Verified September 2026.
This is career information, not legal advice.
Confirm current rules with the Oklahoma Construction Industries Board (CIB).