Is Vaping in a Car with Kids Legal in Montana After the 2026 Policy Reforms?

No, Montana prohibits vaping in enclosed vehicles with minors under 18, effective since 2021 under HB 701, with enforcement by the Montana Department of Public Health & Human Services. Violations incur fines up to $50, and local jurisdictions like Missoula County may impose additional penalties under 2023 public health ordinances.


Key Regulations for Vaping in a Car with Kids in Montana

  • Minor Exposure Ban: HB 701 (2021) explicitly bans vaping in any enclosed vehicle when a child under 18 is present, regardless of whether the device is active. This aligns with Montana’s broader tobacco-free vehicle laws.
  • Local Enforcement Variations: Cities like Bozeman and Billings have strengthened penalties via municipal codes, adding up to $200 in supplementary fines for repeat offenses, per 2023 ordinances.
  • Definition of Enclosed Vehicle: The law covers all motorized vehicles with windows or roofs, including SUVs and vans, as defined in MCA 50-40-103. Exemptions apply only to emergency vehicles during official duties.