Vaping while driving is not illegal in Montana for adults aged 21 and older, as there is currently no specific state law prohibiting it. However, vaping that causes distraction or impairs driving can lead to citations for careless or reckless driving.
Statewide Law Overview
- There is no explicit Montana statute making it illegal to vape and drive a private vehicle if the driver is over 21.
- The minimum age for purchasing and using vape products in Montana is 21, aligning with federal law.
- Montana recently passed SB 390, which bans vaping in all indoor public places, but does not extend that ban to private vehicles.
Possible Legal Consequences
- If vaping distracts the driver or contributes to unsafe vehicle operation, law enforcement may issue tickets for careless driving or reckless endangerment.
- Vaping by passengers or drivers under 21 is illegal anywhere, including in vehicles.
Local Ordinances and Special Zones
- Some Montana cities and counties have local distracted driving ordinances, but these rarely address vaping specifically; drivers should check local rules when traveling.
- There is no statewide law against vaping in a car with children, but general child endangerment principles may apply if the act creates a hazardous environment for minors.
In conclusion, vaping and driving in Montana is legal for adults, provided safe driving is maintained and local ordinances are observed, but underage vaping in vehicles is strictly prohibited.
Sources
(https://ecigator.com/guide/montana-vaping-driving-laws/)
(https://www.publichealthlawcenter.org/resources/us-e-cigarette-regulations-50-state-review/mt)
(https://925kaar.com/montana-bans-indoor-vaping-new-law-2025/)
(https://www.ktvh.com/news/montana-politics/new-montana-law-bars-indoor-vaping-in-public-spaces)
(https://ecigator.com/regulation/montana-vaping-laws-guide/)
