Plumber License from Mississippi to Illinois: Does It Transfer? (2026)
Last verified: 2026-07-21 · source: Illinois Department of Public Health (IDPH) — Plumbing Program ↗
No — Illinois has no reciprocity or endorsement path for Mississippi plumbing license holders. You must apply to the Illinois Department of Public Health (IDPH) — Plumbing Program as a new applicant and meet Illinois's full licensing requirements, including its exams.
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Verdict
Full re-application
Illinois has no plumbing reciprocity or endorsement covering Mississippi, so this is a full journeyman application either way. Illinois requires every out-of-state plumber to pass the Illinois plumber's licensing examination; the application's out-of-state section accepts prior apprenticeship/licensure toward the four-year experience prerequisite but does not waive the exam. The only license-WITHOUT-examination pathway is for a holder of a current City of Chicago plumber's license (an intra-Illinois municipal reciprocity), not for licensees of other states. The productive plan: gather proof of the apprenticeship or on-the-job hours you logged in Mississippi, register for Illinois's journeyman exam, and treat your experience as exam preparation and as credit toward Illinois's experience requirement. Budget a new-applicant timeline and order your certified license history early — it is the long-lead item.
One thing to check first: because Mississippi licenses plumbers only at the contractor level or through cities and counties, you may not hold the kind of state license earned by examination that some boards ask for. Document your hours and any local license or certification you do hold; the Illinois Department of Public Health (IDPH) — Plumbing Program will weigh them toward its experience requirement even though they do not trigger a waiver.
What changes, Mississippi → Illinois
| Mississippi (current) | Illinois (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. | $225 (Application fee for a plumber registered or licensed in Chicago or outside Illinois is $225 (an in-state Illinois licensed-apprentice applicant pays $175); a separate $150 plumber's license fee applies on issuance (68 Ill. Adm. Code 750.1100). The City-of-Chicago reciprocity (license without exam) carries a $150 license fee. Returned-check fee $100) |
| Processing time | Not applicable; the state issues no individual journeyman plumber license. | No board-stated processing time; the examination application is due at least 30 days before the examination date |
| Licensing authority | Mississippi State Board of Contractors (MSBOC) — licenses plumbing CONTRACTORS only; no individual journeyman/master plumber license is issued by the state | Illinois Department of Public Health (IDPH) — Plumbing Program |
The destination column is what you must satisfy — Illinois sets the rules for this move.
Step by step
- Review Illinois's initial-licensure requirements on the Illinois Department of Public Health (IDPH) — Plumbing Program website (linked below).
- Expect to meet Illinois's education/experience requirements and pass its required exams — prior out-of-state licensure may still count toward experience.
- Submit the standard (new applicant) application with fees ($225 (Application fee for a plumber registered or licensed in Chicago or outside Illinois is $225 (an in-state Illinois licensed-apprentice applicant pays $175); a separate $150 plumber's license fee applies on issuance (68 Ill. Adm. Code 750.1100). The City-of-Chicago reciprocity (license without exam) carries a $150 license fee. Returned-check fee $100)).
- Allow No board-stated processing time; the examination application is due at least 30 days before the examination date.
Official links
Related guides
Frequently asked questions
Does Illinois accept a Mississippi plumbing license?
No — Illinois has no reciprocity or endorsement path for Mississippi plumbing license holders. You must apply to the Illinois Department of Public Health (IDPH) — Plumbing Program as a new applicant and meet Illinois's full licensing requirements, including its exams.
Which exam applies moving from Mississippi to Illinois?
Illinois requires every out-of-state plumber to pass the Illinois plumber's licensing examination; the application's out-of-state section accepts prior apprenticeship/licensure toward the four-year experience prerequisite but does not waive the exam. The only license-WITHOUT-examination pathway is for a holder of a current City of Chicago plumber's license (an intra-Illinois municipal reciprocity), not for licensees of other states.
What does the Mississippi-to-Illinois move cost and how long does it take?
$225 (Application fee for a plumber registered or licensed in Chicago or outside Illinois is $225 (an in-state Illinois licensed-apprentice applicant pays $175); a separate $150 plumber's license fee applies on issuance (68 Ill. Adm. Code 750.1100). The City-of-Chicago reciprocity (license without exam) carries a $150 license fee. Returned-check fee $100); processing No board-stated processing time; the examination application is due at least 30 days before the examination date, plus the exam and experience-documentation costs of qualifying as a new applicant.
Can I keep my Mississippi plumbing license after I'm licensed in Illinois?
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.
- Illinois DPH — Application for Examination for Plumber's License (fees $175 in-state / $225 out-of-state; out-of-state section; 4-year 225 ILCS 320/10(d) requirement) ↗ (accessed 2026-07-21)
- Illinois DPH — Application for Plumber's License Reciprocity with the City of Chicago License Without Examination ($150 fee) ↗ (accessed 2026-07-21)
- 68 Ill. Adm. Code 750.1100 — Plumbers' and Apprentice Plumbers' Examination and Licensure Fees (Legal Information Institute) ↗ (accessed 2026-07-21)
- Illinois DPH — Plumbing program (license types, license verification link) ↗ (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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