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Pipefitter licensing in Missouri

Licensed locally, not statewide

Missouri has no statewide license for this trade. The city or county decides — check the jurisdiction the job is actually in before you travel.

✓ Verified 20 August 2026 · board verified

Bringing your license from another state

Missouri has no state fitter license — the statewide mechanical act was never enacted — so nothing transfers at state level and the metro counties own the question. ST. LOUIS COUNTY examines JOURNEYMAN and MASTER PIPEFITTERS by name; Kansas City runs its own mechanical examining structure. One warning for card-holders heading onward: several states expressly refuse city- and county-earned credentials for their own reciprocity (Minnesota by rule), so a Missouri county card is real at home and travels poorly.

Can you work while it is pending?

Jurisdiction-dependent and not established — no local work-while-pending rules were read. Do not start on silence inside a licensing county.

The exam and the hours

ST. LOUIS COUNTY: Journeyman and Master Pipefitter examinations through the county's testing arrangement (budget roughly $175 journeyman / $225 master per the county catalog); experience standards per the county's examiner rules. KANSAS CITY: its own mechanical exams. Ask which jurisdiction pulls the permit, then get that examiner's current requirements.

How apprenticing works here

County-level apprentice registration and hour-banking toward the local journeyman exams; registered apprenticeship in parallel. No state tier exists.

The local picture

THE WHOLE ANSWER LIVES HERE: St. Louis County mapped (journeyman + master pipefitter exams); Kansas City real, fitter classes to confirm with the city; St. Louis CITY is a separate authority from the county. 'Which jurisdiction pulls the permit?' is the first question of every Missouri placement.

If you want to contract for yourself

Company licensing is likewise local — county and municipal mechanical contractor licenses anchored on master-card holders. Verify the employer in the jurisdiction of the work.

Verified August 20, 2026 · source confidence: board-verified
Checked against the state board or statute. Rules change — confirm with the board before you travel or accept work. This is information, not legal advice.