The state file is the first pass: licensing authority, reciprocity posture, workers' compensation threshold, bond notes, and renewal rules. It should not be treated as the final filing answer for a job site.
Cities and counties control contractor licensing, permits, inspections, bonds, insurance proof, and local code enforcement.
Confirm local contractor registration and permit requirements before bidding; state rules are not the final filing layer for most work.
Primary licensing body
Missouri local building departments; state trade boards where applicable is the main statewide reference point for this file. County and municipal departments may still impose separate registration, permit, insurance, inspection, or bond requirements.
Source · State licensing authority · county building departmentsLast verified · 05 / 2026