Plumber License from Mississippi to Ohio: Does It Transfer? (2026)
Last verified: 2026-07-21 · source: Ohio Construction Industry Licensing Board (OCILB) — Ohio Department of Commerce, Division of Industrial Compliance ↗
A plumbing license transfers from Mississippi to Ohio by endorsement — there is no automatic reciprocity, but you do not start over. Apply to the Ohio Construction Industry Licensing Board (OCILB) — Ohio Department of Commerce, Division of Industrial Compliance, verify your Mississippi license, and meet Ohio's endorsement requirements. Ohio waives its OCILB plumbing trade exam only for applicants who currently hold a South Carolina or West Virginia plumbing license obtained by examination (not by grandfathering or reciprocity); an out-of-state licensee who instead got their license by grandfathering or reciprocity must take both the Ohio plumbing exam and the Ohio Business and Law exam, and every other applicant must qualify with five years of trade experience and pass the Ohio plumbing exam.
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Verdict
Licensure by endorsement
Mississippi is not among the states Ohio names for an automatic exam waiver, so this move runs on the Ohio Construction Industry Licensing Board (OCILB) — Ohio Department of Commerce, Division of Industrial Compliance's individual endorsement or equivalency review rather than a guarantee. Ohio waives its OCILB plumbing trade exam only for applicants who currently hold a South Carolina or West Virginia plumbing license obtained by examination (not by grandfathering or reciprocity); an out-of-state licensee who instead got their license by grandfathering or reciprocity must take both the Ohio plumbing exam and the Ohio Business and Law exam, and every other applicant must qualify with five years of trade experience and pass the Ohio plumbing exam. Bring your Mississippi license, proof that it is active and in good standing, and your apprenticeship and exam records — and get any discretionary exam or experience credit in writing before you rely on it.
What changes, Mississippi → Ohio
| Mississippi (current) | Ohio (destination) | |
|---|---|---|
| Application fee | No individual state journeyman/master plumber license exists, so there is no state application fee; MSBOC contractor Certificate of Responsibility fees are company-level and separate, and any municipal plumber license fee is set locally. | $25 ($25.00 non-refundable reciprocity application fee per trade; proof of at least $500,000 contractor liability insurance required. Non-reciprocal applicants pay a $25 exam application fee plus BCI and FBI background-check costs.) |
| Processing time | Not applicable; the state issues no individual journeyman plumber license. | No board-stated processing time; reciprocity applications are approved or denied by board review. |
| Licensing authority | Mississippi State Board of Contractors (MSBOC) — licenses plumbing CONTRACTORS only; no individual journeyman/master plumber license is issued by the state | Ohio Construction Industry Licensing Board (OCILB) — Ohio Department of Commerce, Division of Industrial Compliance |
The destination column is what you must satisfy — Ohio sets the rules for this move.
Step by step
- Confirm Ohio's current requirements on the Ohio Construction Industry Licensing Board (OCILB) — Ohio Department of Commerce, Division of Industrial Compliance website (linked below) — rules change.
- Submit the endorsement application to the Ohio Construction Industry Licensing Board (OCILB) — Ohio Department of Commerce, Division of Industrial Compliance (application linked below).
- Arrange license verification from your current state via the verification system.
- Hold a current South Carolina or West Virginia plumbing license issued by examination and in good standing (West Virginia applicants must hold both a WV Master Plumber and a WV Contractor license).
- Submit a Reciprocity Verification of Licensure form certified with the originating state board's seal and exam score.
- Carry contractor liability insurance of at least $500,000.
- Assign the Ohio license to a registered contracting company (ORC 4740.01).
- Pay the fees ($25 ($25.00 non-refundable reciprocity application fee per trade; proof of at least $500,000 contractor liability insurance required. Non-reciprocal applicants pay a $25 exam application fee plus BCI and FBI background-check costs.)) and allow No board-stated processing time; reciprocity applications are approved or denied by board review..
Official links
Related guides
Frequently asked questions
Does Ohio accept a Mississippi plumbing license?
A plumbing license transfers from Mississippi to Ohio by endorsement — there is no automatic reciprocity, but you do not start over. Apply to the Ohio Construction Industry Licensing Board (OCILB) — Ohio Department of Commerce, Division of Industrial Compliance, verify your Mississippi license, and meet Ohio's endorsement requirements. Ohio waives its OCILB plumbing trade exam only for applicants who currently hold a South Carolina or West Virginia plumbing license obtained by examination (not by grandfathering or reciprocity); an out-of-state licensee who instead got their license by grandfathering or reciprocity must take both the Ohio plumbing exam and the Ohio Business and Law exam, and every other applicant must qualify with five years of trade experience and pass the Ohio plumbing exam.
Which exam applies moving from Mississippi to Ohio?
Ohio waives its OCILB plumbing trade exam only for applicants who currently hold a South Carolina or West Virginia plumbing license obtained by examination (not by grandfathering or reciprocity); an out-of-state licensee who instead got their license by grandfathering or reciprocity must take both the Ohio plumbing exam and the Ohio Business and Law exam, and every other applicant must qualify with five years of trade experience and pass the Ohio plumbing exam.
What does the Mississippi-to-Ohio move cost and how long does it take?
$25 ($25.00 non-refundable reciprocity application fee per trade; proof of at least $500,000 contractor liability insurance required. Non-reciprocal applicants pay a $25 exam application fee plus BCI and FBI background-check costs.); processing No board-stated processing time; reciprocity applications are approved or denied by board review..
Can I keep my Mississippi plumbing license after I'm licensed in Ohio?
Yes — plumbing licenses in different jurisdictions run independently. Keep the Mississippi 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.
- OCILB Examination Application (state commercial plumbing contractor license; $25 fee; five-year experience; trades include Plumbing) ↗ (accessed 2026-07-21)
- OCILB South Carolina Reciprocity Application (PL trade; exam waived for tested SC licensees; $25 per trade) ↗ (accessed 2026-07-21)
- OCILB West Virginia Mechanical Reciprocity Application (PL trade; must hold WV Master Plumber + WV Contractor license, tested not grandfathered) ↗ (accessed 2026-07-21)
- MSBOC — Reciprocity (contractor trade-exam waiver; Business & Law exam still required) ↗ (accessed 2026-07-21)
- MSBOC — Classifications (plumbing is a company/contractor classification) ↗ (accessed 2026-07-21)
- MSBOC — Frequently Asked Questions (who must be licensed) ↗ (accessed 2026-07-21)
- MSBOC — One-Stop-Shop (monetary thresholds and contractor license search) ↗ (accessed 2026-07-21)
Reviewed by Billy Reiner, Editor · verified against primary sources 2026-07-21
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