Is Studded Tires Legal in Missouri After the 2026 Policy Reforms?

No, studded tires are prohibited statewide in Missouri under §307.175 RSMo, with no seasonal exemptions or local variances permitted. The statute bans metal studs entirely, citing road damage risks, and the Missouri Department of Transportation (MoDOT) enforces compliance through vehicle inspections. Violations may result in fines or citations, aligning with the state’s 2023 infrastructure protection initiatives.

Key Regulations for Studded Tires in Missouri

  • Statewide Ban: §307.175 RSMo explicitly prohibits the use of studded tires on any public roadway, regardless of weather conditions or local jurisdiction.
  • Enforcement Authority: MoDOT conducts random roadside checks, particularly in northern counties where winter conditions historically prompted studded tire use.
  • Penalties: Violators face fines up to $150 under §304.010 RSMo, with repeat offenses escalating to potential license points.

Local municipalities lack authority to override the state ban, as transportation regulations fall under the Missouri Highways and Transportation Commission’s purview. The 2026 MoDOT Strategic Plan further emphasizes enforcement to mitigate road surface degradation, particularly on interstate highways. Alternative traction devices, such as snow chains or winter-rated tires, remain the only compliant options.