Transfer Your Plumber License to Iowa: Reciprocity & Endorsement (2026)
Last verified: 2026-07-21 · source: Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals, and Licensing) ↗
Conditionally — Iowa recognizes plumbing licenses from 1 named partner state (South Dakota). A plumber licensed by examination and in good standing there applies to the Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals, and Licensing) under the agreement; Iowa waives its journeyperson plumber exam only for applicants who hold a South Dakota plumbing license obtained on the basis of written examination (its sole reciprocity agreement, approved May 2016); every other out-of-state plumber must pass the Iowa journeyperson exam. From any other state you qualify and sit Iowa's journeyman exam as a new applicant. Application fee: $30–$180 (Journeyperson license fee is $180 for a full three-year period and is prorated down to roughly $30 depending on issue date; +$25 paper-application fee if not filed online. Reciprocity applicants are not charged the $35-per-trade exam-approval fee or the $99 Kirkwood Community College exam fee because the exam is waived.).
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Verdict
Reciprocity with 1 states
Read Iowa's reciprocity as a named list, and the list is the rule: if you were licensed by examination in a state on it and your license is in good standing, the streamlined track below applies; if not, no amount of field experience substitutes for Iowa's exam. Two cautions. The agreement is directional — it describes the states Iowa recognizes, which tells you nothing about the reverse move — and it typically excludes licenses that were grandfathered in rather than earned by examination. Confirm both against the Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals, and Licensing) before you rely on the waiver.
Iowa's only plumbing reciprocity agreement is with South Dakota (approved May 2016, its first) and covers journeyperson and master licenses obtained by examination; there is no agreement with any other state. Master plumbers from non-reciprocal jurisdictions may qualify to sit for the Iowa exam but the exam is not waived. The board is administered by DIAL (formerly the Iowa Department of Public Health). No national plumber verification database exists, so verification_system_url points to DIAL's public record/license search.
Iowa requirements at a glance
| Exam | Iowa waives its journeyperson plumber exam only for applicants who hold a South Dakota plumbing license obtained on the basis of written examination (its sole reciprocity agreement, approved May 2016); every other out-of-state plumber must pass the Iowa journeyperson exam |
|---|---|
| Additional requirements |
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| Fees | $30–$180 (Journeyperson license fee is $180 for a full three-year period and is prorated down to roughly $30 depending on issue date; +$25 paper-application fee if not filed online. Reciprocity applicants are not charged the $35-per-trade exam-approval fee or the $99 Kirkwood Community College exam fee because the exam is waived.) |
| Processing time | ~2 weeks (Board indicates it reviews an application/exam-approval submission in up to about two weeks; no reciprocity-specific timeline is published.) |
Step by step
- Confirm Iowa's current requirements on the Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals, and Licensing) website — rules change.
- Submit the reciprocity/endorsement application to the Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals, and Licensing) (application linked on this page).
- Arrange license verification from your current state via the verification system.
- Hold a South Dakota plumbing license issued on the basis of written examination (reciprocity covers only the journeyperson and master licenses, not the contractor license).
- Submit a copy of the South Dakota license plus a certificate of good standing / license verification from the South Dakota Plumbing Commission.
- Non-reciprocity applicants must document four years of apprenticeship experience (or a master license from another jurisdiction) and pass the Iowa journeyperson exam.
- Disclose any criminal convictions; a felony conviction is subject to board review.
- Pay the fees ($30–$180 (Journeyperson license fee is $180 for a full three-year period and is prorated down to roughly $30 depending on issue date; +$25 paper-application fee if not filed online. Reciprocity applicants are not charged the $35-per-trade exam-approval fee or the $99 Kirkwood Community College exam fee because the exam is waived.)) and allow ~2 weeks (Board indicates it reviews an application/exam-approval submission in up to about two weeks; no reciprocity-specific timeline is published.).
Official links
Coming from a specific state?
Direction matters — these guides cover the exact move into Iowa:
Frequently asked questions
Does my plumbing license transfer to Iowa?
Conditionally — Iowa recognizes plumbing licenses from 1 named partner state (South Dakota). A plumber licensed by examination and in good standing there applies to the Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals, and Licensing) under the agreement; Iowa waives its journeyperson plumber exam only for applicants who hold a South Dakota plumbing license obtained on the basis of written examination (its sole reciprocity agreement, approved May 2016); every other out-of-state plumber must pass the Iowa journeyperson exam. From any other state you qualify and sit Iowa's journeyman exam as a new applicant. Application fee: $30–$180 (Journeyperson license fee is $180 for a full three-year period and is prorated down to roughly $30 depending on issue date; +$25 paper-application fee if not filed online. Reciprocity applicants are not charged the $35-per-trade exam-approval fee or the $99 Kirkwood Community College exam fee because the exam is waived.).
Will I have to take Iowa's plumbing exam?
Iowa waives its journeyperson plumber exam only for applicants who hold a South Dakota plumbing license obtained on the basis of written examination (its sole reciprocity agreement, approved May 2016); every other out-of-state plumber must pass the Iowa journeyperson exam.
Which states does Iowa have plumbing reciprocity with?
South Dakota (1 state, verified 2026-07-21 against the Iowa Plumbing and Mechanical Systems Board (Department of Inspections, Appeals, and Licensing)). The waiver applies only if you were licensed by examination there; plumbers from every other state qualify as new applicants.
What will licensing in Iowa cost an out-of-state plumber, and how long does it take?
$30–$180 (Journeyperson license fee is $180 for a full three-year period and is prorated down to roughly $30 depending on issue date; +$25 paper-application fee if not filed online. Reciprocity applicants are not charged the $35-per-trade exam-approval fee or the $99 Kirkwood Community College exam fee because the exam is waived.); processing ~2 weeks (Board indicates it reviews an application/exam-approval submission in up to about two weeks; no reciprocity-specific timeline is published.).
Sources
Primary sources only — official boards and compact commissions. Data last verified 2026-07-21.
- Iowa DIAL — Journey Level (journeyperson) plumber license & South Dakota reciprocity ↗ (accessed 2026-07-21)
- Iowa DIAL — Plumbing & Mechanical Systems license fees (journeyperson $180, $25 paper fee) ↗ (accessed 2026-07-21)
- Iowa DIAL — Find a record or license (public lookup) ↗ (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]