US lawMichiganRegulationsDepartment — Labor and Economic OpportunityBureau — MIOSHAR 408.12201 to 408.12261 — Part 22. Tractors408.12241R 408.12241R 408.12241 Spinner knobs.Last amended: 1979Year: 2026Length: 16 wordsOfficial source Cite as Mich. Admin. Code R 408.12241Rule 2241. A spinner knob shall not be attached to a steering wheel on a tractor.PreviousR 408.12240NextR 408.12242