Requirements, license levels, and the issuing authority — sourced from Mississippi's official board.
Mississippi does NOT issue statewide individual journeyman/master plumber licenses; state-level regulation is at the contractor level via MSBOC, with local jurisdictions handling other tiers. Established under Miss. Code Title 31/73.
| Requirements | MSBOC issues contractor licenses (Certificate of Responsibility) only, NOT individual journeyman/master plumber licenses. Both the Plumbing (commercial + residential scope) and Residential Plumbing classifications require passing a trade examination. Commercial license held via a Certificate of Responsibility numbered to the contractor. |
| Reciprocity | MSBOC has a reciprocity program; plumbing is listed among reciprocal classifications for contractors transferring from other states (reciprocity form/instructions on the MSBOC site). |
| Renewal | Contractor certificates renew online (annual/periodic per MSBOC); specific dollar thresholds requiring licensure are set by statute rather than stated on the classifications page. |
| Notes | Mississippi does NOT issue statewide individual journeyman/master plumber licenses; state-level regulation is at the contractor level via MSBOC, with local jurisdictions handling other tiers. Established under Miss. Code Title 31/73. |
Sources: www.msboc.us. Always confirm current requirements with the issuing authority.
New licenses, ladder upgrades, classification changes and lapses, by market and credential tier. Read the quarterly free, or license the underlying data.