Plumber License from California to Montana: Does It Transfer? (2026)
Does Montana accept a California plumbing license?
There is no California state license to carry to Montana: California issues no statewide journeyman plumber license. Montana does license this work, so ask the Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division whether it credits a local license or your documented experience; otherwise you qualify as a new applicant.
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Verdict
No state license to transfer
The issue on this move is the starting point: California issues no statewide journeyman plumber license — plumbing there is regulated at the contractor level or by cities and counties — so there is no California state license for Montana to verify or endorse. Montana does license plumbers, through the Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division, and it reviews out-of-state plumbers for endorsement, but that route starts from a state license. Ask the board, in writing, whether it credits a local California license, a contractor-level credential or your documented hours; otherwise plan to qualify as a new journeyman applicant. Montana waives its journeyman written and practical examinations for an applicant who took and passed both the written and practical journeyman exams in Oregon, Idaho, North Dakota, or South Dakota and holds an active license there with no complaints filed; every other out-of-state applicant must sit for the Montana journeyman written and practical exams.
What's different between California and Montana
Computed from both states' verified data rows, in both directions, and from the route every other origin gets into Montana. Exam notes are our summary of each board's published rules, with sources below.
- Route, each way
California to Montana (this page): No state license to transfer.
Montana to California (the reverse move): No state license to transfer.
California issues no statewide journeyman plumber license, so neither direction is a state-license transfer.
- Does coming from California matter?
Coming from California matters here: only 9 of 50 origins (the other 49 states and DC) get this result for a move into Montana.
The others get: licensure by endorsement (37) and reciprocity agreement (4).
- Reciprocity agreements
Montana's reciprocity agreement list names 4 states (Oregon, Idaho, North Dakota, and South Dakota), not including California.
- Fee and processing
California issues no statewide journeyman plumber license, so there is no California state license application fee or processing time to compare with Montana's.
- Exam rules on record
Montana and California carry different exam notes (our summaries, below); any state law or jurisprudence exam is listed with each state's requirements.
- Montana (this move): Montana waives its journeyman written and practical examinations for an applicant who took and passed both the written and practical journeyman exams in Oregon, Idaho, North Dakota, or South Dakota and holds an active license there with no complaints filed; every other out-of-state applicant must sit for the Montana journeyman written and practical exams
- California (the reverse move): 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.
What changes, California → Montana
| California (current) | Montana (destination) | |
|---|---|---|
| Application fee | 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 | $400 (Reciprocity path: $400 total ($100 application fee + $300 reciprocity fee). The examination path is instead $270 ($100 application + $170 license). Optional $100 temporary journeyman work permit if requested) |
| Processing time | Not applicable — no state journeyman plumber license is issued | up to 4 weeks (Board states complete, routine applications are processed within 30 days (about 4 weeks); non-routine applications requiring Board review take longer, and applicants are notified of status within 30 days of receipt) |
| Licensing authority | California Contractors State License Board (CSLB) | Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division |
The destination column is what you must satisfy — Montana sets the rules for this move.
Step by step
- Review Montana's requirements on the Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division website (linked below) — rules change.
- Ask the Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division whether it credits a local California license or your documented experience: California issues no statewide journeyman plumber license, so there is no state license to verify.
- Otherwise apply as a new applicant: meet Montana's education/experience requirements and pass the exams it requires.
- Submit the application with fees listed above, and allow for the processing time shown there.
Official links
Related guides
Frequently asked questions
What happens to my California credential after I'm licensed in Montana?
Nothing changes it. California issues no statewide journeyman plumber license, so any local or contractor-level California credential you hold runs on its own authority's renewal rules, independently of your Montana license.
Sources
Primary sources only — official boards and compact commissions. Data last verified 2026-07-21.
- Montana Board of Plumbers — Journeyman Plumber Application (reciprocity states, fees $100/$300/$170, 5 yr/7,500 hr experience, 30-day processing, 2012 UPC exam) ↗ (accessed 2026-07-21)
- Montana Board of Plumbers — Journeyman Plumber by Out of State / Reciprocity Checklist (ARM 24.180.603, 37-1-304 MCA; $400 reciprocity total) ↗ (accessed 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 the License Reciprocity Editorial Team · verified against primary sources 2026-07-21
How we verify · All sources · Corrections log · spot an error? hello@licensereciprocity.com