No, Montana law does not explicitly prohibit driving without a shirt, but municipal ordinances and traffic safety statutes impose indirect restrictions. While state statutes remain silent on shirtless driving, local governments may regulate attire under public decency or nuisance laws, particularly in urban areas like Billings or Missoula. The Montana Department of Transportation (MDT) emphasizes that attire must not obstruct safe operation of a vehicle, per MCA § 61-8-310, which mandates unobstructed visibility and control.
Key Regulations for Driving Without a Shirt in Montana
- Public Decency Ordinances: Cities such as Bozeman and Helena enforce local codes prohibiting “indecent exposure” (e.g., Billings Municipal Code § 9-1-3), which could apply to shirtless driving in non-vehicular contexts or if deemed disruptive.
- Traffic Safety Statutes: MCA § 61-8-310 requires drivers to maintain full control of their vehicle; loose or restrictive clothing that impedes movement may violate this provision, regardless of shirt status.
- 2026 Compliance Shifts: The MDT’s upcoming 2026 traffic safety guidelines may introduce clearer language on attire-related distractions, aligning with national AAA recommendations to avoid loose-fitting clothing while driving.