Transfer Your Plumber License to California: Reciprocity & Endorsement (2026)
Last verified: 2026-07-21 · source: California Contractors State License Board (CSLB) ↗
California 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 at the journeyman level — California issues no state journeyman plumber license, so there is no state journeyman trade exam. Plumbing is licensed only at the contractor level by the Contractors State License Board (C-36 Plumbing). At that contractor tier, CSLB has a reciprocity agreement covering the C-36 classification with Arizona only: an Arizona C-37 or C-37R contractor who has held that license active and in good standing for the previous five years may have the C-36 trade exam waived (CSLB reserves the right to require it), but must still pass CSLB's Law and Business exam. CSLB's other reciprocity partners (Nevada, Louisiana, Mississippi, North Carolina) do not map to C-36 Plumbing..
Moving to California from a specific state?
Pick your current state — the checker returns your exact pathway.
Verdict
Full re-application required
The structural fact first: California 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 California'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.
California has no state journeyman/master plumber license; the CSLB licenses only plumbing CONTRACTORS (C-36), which requires 4 years of journey-level experience and passing the trade + law/business exams. Because the canonical journeyman credential does not exist at the state level, endorsement_available, full_reciprocity, and reciprocity_partners are false/empty. CSLB's contractor-tier reciprocity maps to C-36 only with Arizona (C-37 / C-37R; trade exam may be waived, Law & Business exam always required, five-year good-standing license required); its agreements with Louisiana, Mississippi, Nevada, and North Carolina map to general building or sanitation classifications, not C-36. No journeyman license lookup exists (CSLB 'Check a License' verifies contractors). An aggregator claim that California has no plumbing reciprocity with any state is contradicted by CSLB's own classification list and was rejected.
California requirements at a glance
| Exam | Not applicable at the journeyman level — California issues no state journeyman plumber license, so there is no state journeyman trade exam. Plumbing is licensed only at the contractor level by the Contractors State License Board (C-36 Plumbing). At that contractor tier, CSLB has a reciprocity agreement covering the C-36 classification with Arizona only: an Arizona C-37 or C-37R contractor who has held that license active and in good standing for the previous five years may have the C-36 trade exam waived (CSLB reserves the right to require it), but must still pass CSLB's Law and Business exam. CSLB's other reciprocity partners (Nevada, Louisiana, Mississippi, North Carolina) do not map to C-36 Plumbing. |
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| Fees | No state journeyman plumber license exists, so there is no journeyman fee. For reference, the CSLB C-36 plumbing CONTRACTOR license (contractor tier, out of scope) is $450 original application + $200 initial license fee (sole owner) / $350 (non-sole owner), plus a bond and Live Scan fingerprint fee. |
| Processing time | Not applicable — no state journeyman plumber license is issued |
Step by step
- Confirm California's current requirements on the California Contractors State License Board (CSLB) website — rules change.
- Submit the endorsement application to the California Contractors State License Board (CSLB).
- Arrange license verification from your current state.
- No state journeyman or master plumber license exists — the state licenses only plumbing contractors through the CSLB.
- To contract for plumbing, obtain a CSLB C-36 Plumbing contractor license (4 years journey-level experience plus the trade and law/business exams, a bond, and Live Scan fingerprinting).
- Journeyman plumbers are not separately state-licensed; journey-level status comes through apprenticeship/union programs.
- Pay the fees (No state journeyman plumber license exists, so there is no journeyman fee. For reference, the CSLB C-36 plumbing CONTRACTOR license (contractor tier, out of scope) is $450 original application + $200 initial license fee (sole owner) / $350 (non-sole owner), plus a bond and Live Scan fingerprint fee.) and allow Not applicable — no state journeyman plumber license is issued.
Official links
Coming from a specific state?
Direction matters — these guides cover the exact move into California:
All 50 origin states
Frequently asked questions
Does my plumbing license transfer to California?
California 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 at the journeyman level — California issues no state journeyman plumber license, so there is no state journeyman trade exam. Plumbing is licensed only at the contractor level by the Contractors State License Board (C-36 Plumbing). At that contractor tier, CSLB has a reciprocity agreement covering the C-36 classification with Arizona only: an Arizona C-37 or C-37R contractor who has held that license active and in good standing for the previous five years may have the C-36 trade exam waived (CSLB reserves the right to require it), but must still pass CSLB's Law and Business exam. CSLB's other reciprocity partners (Nevada, Louisiana, Mississippi, North Carolina) do not map to C-36 Plumbing..
Will I have to take California's plumbing exam?
Not applicable at the journeyman level — California issues no state journeyman plumber license, so there is no state journeyman trade exam. Plumbing is licensed only at the contractor level by the Contractors State License Board (C-36 Plumbing). At that contractor tier, CSLB has a reciprocity agreement covering the C-36 classification with Arizona only: an Arizona C-37 or C-37R contractor who has held that license active and in good standing for the previous five years may have the C-36 trade exam waived (CSLB reserves the right to require it), but must still pass CSLB's Law and Business exam. CSLB's other reciprocity partners (Nevada, Louisiana, Mississippi, North Carolina) do not map to C-36 Plumbing..
Does California issue a state plumbing license?
No — Not applicable at the journeyman level — California issues no state journeyman plumber license, so there is no state journeyman trade exam. Plumbing is licensed only at the contractor level by the Contractors State License Board (C-36 Plumbing). At that contractor tier, CSLB has a reciprocity agreement covering the C-36 classification with Arizona only: an Arizona C-37 or C-37R contractor who has held that license active and in good standing for the previous five years may have the C-36 trade exam waived (CSLB reserves the right to require it), but must still pass CSLB's Law and Business exam. CSLB's other reciprocity partners (Nevada, Louisiana, Mississippi, North Carolina) do not map to C-36 Plumbing.. 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 California cost an out-of-state plumber, and how long does it take?
No state journeyman plumber license exists, so there is no journeyman fee. For reference, the CSLB C-36 plumbing CONTRACTOR license (contractor tier, out of scope) is $450 original application + $200 initial license fee (sole owner) / $350 (non-sole owner), plus a bond and Live Scan fingerprint fee.; processing Not applicable — no state journeyman plumber license is issued.
Sources
Primary sources only — official boards and compact commissions. Data last verified 2026-07-21.
- CSLB — C-36 Plumbing Contractor classification detail (plumbing licensed only at contractor level) ↗ (accessed 2026-07-21)
- CSLB — Reciprocal Classifications List (C-36 reciprocity maps only to Arizona C-37/C-37R) ↗ (accessed 2026-07-21)
- CSLB — Reciprocity Exam Requirements (trade portion may be waived; Law & Business exam still required; 5-year license) ↗ (accessed 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]