Plumber License from South Dakota to Montana: Does It Transfer? (2026)
Last verified: 2026-07-21 · source: Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division ↗
Yes — Montana has a reciprocity arrangement covering South Dakota license holders. Apply to the Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division under its reciprocity/endorsement track; typically you skip the national exam and complete state-specific requirements only.
Verify this exact pair in the checker
Same data, interactive — with share link and board links.
Verdict
Reciprocity agreement
South Dakota is on Montana's reciprocity list, which puts this move on the streamlined track — on two conditions. Your South Dakota license must have been earned by examination, not grandfathered in, and be active and in good standing; where it is, Montana waives its journeyman exam and the requirements below are what it still insists on. 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. One caution: these agreements are directional and revocable. This page's verification date is when we last confirmed South Dakota on Montana's list; the Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division link is the live truth.
What changes, South Dakota → Montana
| South Dakota (current) | Montana (destination) | |
|---|---|---|
| Application fee | $50 ($50 plumber license application fee (SDPC application, Rev. 02/2026); reciprocity applicants pay the same $50 and file the reciprocity documentation; a $100 exam fee applies only to applicants who must sit the examination; licenses expire December 31 (annual)) | $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 | No board-stated processing time; an incomplete application expires 30 days after receipt and all fees are non-refundable | ~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 | South Dakota Plumbing Commission (Department of Labor and Regulation) | 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
- Confirm Montana's current requirements on the Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division website (linked below) — rules change.
- Submit the reciprocity application to the Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division (application linked below).
- Arrange license verification from your current state via the verification system.
- Hold an active journeyman plumber license, with no complaints filed against it, in Oregon, Idaho, North Dakota, or South Dakota.
- Have taken and passed both the written and practical journeyman examination in that reciprocating state (license by examination).
- Have an official license verification sent directly from the originating state board — Montana will not issue a license without the verification letter.
- Non-reciprocal applicants must document 5 years and 7,500 aggregate hours of plumbing experience (or complete an approved apprenticeship) and pass the Montana written and practical exams at 70%.
- Pay the fees ($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)) and allow ~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).
Official links
Related guides
Frequently asked questions
Does Montana accept a South Dakota plumbing license?
Yes — Montana has a reciprocity arrangement covering South Dakota license holders. Apply to the Montana Board of Plumbers — Department of Labor and Industry, Business Standards Division under its reciprocity/endorsement track; typically you skip the national exam and complete state-specific requirements only.
Which exam applies moving from South Dakota to Montana?
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 does the South Dakota-to-Montana move cost and how long does it take?
$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 ~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).
Can I keep my South Dakota plumbing license after I'm licensed in Montana?
Yes — plumbing licenses in different jurisdictions run independently. Keep the South Dakota credential active on its own renewal and continuing-education schedule and you hold both, which is common for plumbers working near a state line.
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)
- SD Plumbing Commission — Reciprocal Agreements (by-examination + substantially-equivalent-code rule) ↗ (accessed 2026-07-21)
- SD Plumbing Commission — Plumbing License Application (Plumber $50; license-by-reciprocity requires proof of license by exam, verification, and 4 hours CE), Rev. 02/2026 ↗ (accessed 2026-07-21)
- SD Plumbing Commission — Licensing (four-year apprenticeship; annual expiry) ↗ (accessed 2026-07-21)
- SD Plumbing Commission — Exams ($100 exam/re-exam fee) ↗ (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]