Transfer Your Plumber License to Missouri: Reciprocity & Endorsement (2026)
Last verified: 2026-07-21 · source: No state plumbing board — the Missouri Division of Professional Registration does not license plumbers; licensing is local (e.g., St. Louis Board of Examiners of Plumbers and Drainlayers) ↗
Missouri does not license individual journeyman plumbers at the state level — regulation is at the contractor level or through cities and counties — so there is nothing to transfer into or out of by state agreement. Not applicable — Missouri issues no state-level plumber license; each city or county board of examiners sets its own examination, so there is no statewide credential to transfer and no state exam to waive.
Moving to Missouri from a specific state?
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Verdict
Full re-application required
The structural fact first: Missouri does not issue a statewide journeyman plumber license, so "which board do I apply to" has no state-level answer and there is no state credential to carry across. Your first task is to identify the authority that governs the jobsite — a contractor-level board, or the city or county where you will work — and read its exam and experience rules directly. Just as important on the way out: a credential earned under Missouri's regime generally will not satisfy another state's condition that you hold a state license earned by examination, so expect new-applicant treatment if you later move to a state that does license at the state level. Treat the notes below as directions to the right authority, not a transfer checklist.
Missouri has NO statewide plumber license. RSMo Chapter 341 (Plumbers and Plumbing) sets baseline journeyman/master qualifications but is enforced by local city/county boards of examiners, which administer the exams and set the fees; the Missouri Division of Professional Registration confirms it does not license plumbers. Because the credential is municipal, there is no state-level reciprocity — a license earned in another state generally cannot be transferred by agreement, and an out-of-state plumber must qualify under the destination city/county's own rules. No state license lookup for plumbers exists, so verification_system_url is null.
Missouri requirements at a glance
| Exam | Not applicable — Missouri issues no state-level plumber license; each city or county board of examiners sets its own examination, so there is no statewide credential to transfer and no state exam to waive |
|---|---|
| Additional requirements |
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| Fees | No state fee — plumber licensing fees are set by each local jurisdiction and vary; consult the specific city or county board |
| Processing time | No statewide process; timelines are set by each local board (e.g., the St. Louis Board of Examiners reviews applications at its monthly board meetings) |
Step by step
- Confirm Missouri's current requirements on the No state plumbing board — the Missouri Division of Professional Registration does not license plumbers; licensing is local (e.g., St. Louis Board of Examiners of Plumbers and Drainlayers) website — rules change.
- Submit the endorsement application to the No state plumbing board — the Missouri Division of Professional Registration does not license plumbers; licensing is local (e.g., St. Louis Board of Examiners of Plumbers and Drainlayers).
- Arrange license verification from your current state.
- Obtain any required plumber license from the local city or county board of examiners where the work will be performed (e.g., the St. Louis Board of Examiners of Plumbers and Drainlayers, or Kansas City).
- Under RSMo Chapter 341, cities and counties of 15,000 or more population require passing a locally administered journeyman/master plumber examination.
- Meet the local jurisdiction's apprenticeship/experience and examination requirements, which vary by city.
- Pay the fees (No state fee — plumber licensing fees are set by each local jurisdiction and vary; consult the specific city or county board) and allow No statewide process; timelines are set by each local board (e.g., the St. Louis Board of Examiners reviews applications at its monthly board meetings).
Official links
Coming from a specific state?
Direction matters — these guides cover the exact move into Missouri:
Frequently asked questions
Does my plumbing license transfer to Missouri?
Missouri does not license individual journeyman plumbers at the state level — regulation is at the contractor level or through cities and counties — so there is nothing to transfer into or out of by state agreement. Not applicable — Missouri issues no state-level plumber license; each city or county board of examiners sets its own examination, so there is no statewide credential to transfer and no state exam to waive.
Will I have to take Missouri's plumbing exam?
Not applicable — Missouri issues no state-level plumber license; each city or county board of examiners sets its own examination, so there is no statewide credential to transfer and no state exam to waive.
Does Missouri issue a state plumbing license?
No — Not applicable — Missouri issues no state-level plumber license; each city or county board of examiners sets its own examination, so there is no statewide credential to transfer and no state exam to waive. Because there is no statewide journeyman license, an out-of-state credential is not transferred by reciprocity; you meet the contractor board's or the specific city or county's requirements (verified 2026-07-21).
What will licensing in Missouri cost an out-of-state plumber, and how long does it take?
No state fee — plumber licensing fees are set by each local jurisdiction and vary; consult the specific city or county board; processing No statewide process; timelines are set by each local board (e.g., the St. Louis Board of Examiners reviews applications at its monthly board meetings).
Sources
Primary sources only — official boards and compact commissions. Data last verified 2026-07-21.
Reviewed by Billy Reiner, Editor · verified against primary sources 2026-07-21
How we verify · All sources · spot an error? [email protected]