Do you need a mold inspector license in Missouri?
Missouri does not license or register mold inspectors. Missouri sits largely in mixed-humid zone 4A, a two-season climate of humid summers (AC condensation) and cold-surface winter condensation, with crawlspace ground moisture common. The Missouri Department of Health and Senior Services publishes mold guidance but issues no mold credential. Missouri inspectors typically hold a voluntary IICRC or ACAC certification.
Is a license required?
Missouri does not license mold inspectors or assessors at the state level. Inspectors typically hold a voluntary certification (such as IICRC or ACAC) rather than a state license.
Official source
Missouri state agency mold guidance
Common questions
Do you need a license to be a mold inspector in Missouri?
No. Missouri issues no state mold-inspector license, so there is no state exam or registration to complete. Inspectors instead show competence through voluntary certification such as IICRC or ACAC and by following recognized industry standards.
Who regulates mold inspection in Missouri?
No single board regulates mold inspection in Missouri. The state's environmental and health agencies publish general mold guidance instead: https://health.mo.gov/.
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