In Maryland, simply vaping while you drive is not explicitly illegal by itself, but it can still get you into legal trouble depending on how you’re driving and what you’re vaping.
The law is written more broadly around distractions, impairment, and cannabis use than around vaping as a standalone act.
Vaping regular nicotine while driving
Maryland has no statewide law that makes it a traffic violation for an adult to vape nicotine while driving in a private vehicle, as long as no minor or other special restriction applies.
However, if vaping distracts you—causing swerving, delayed reactions, or other unsafe driving—a police officer can cite you under Maryland’s distracted driving or careless driving statutes.
Vaping with minors or cannabis in the car
- With minors: Maryland does not currently ban nicotine vaping with minors in the car, but a 2025 bill (HB 544) would have made it illegal for anyone to smoke, vape, or consume cannabis in a vehicle with a minor, scheduled to take effect October 1, 2026; if enacted, that would directly change the rules for vaping with children.
- Cannabis vaping: It is explicitly illegal for a driver or passenger to smoke or consume cannabis in the passenger area of a motor vehicle on a highway, under Transportation Code § 21‑903 and Criminal Law § 10‑125(b)(3). If you vape THC and drive, you can face civil penalties and DUI‑related charges if you are impaired.
Driving while impaired by vaping
If you drive while mentally or physically impaired from vaping any substance (especially cannabis), you can be charged under Maryland’s DUI laws, which carry serious penalties, including fines, license suspension, and possible jail time. Even if the vaping itself is not banned, impairment plus unsafe driving is enough for an arrest.
Practical tips for Maryland drivers
- Treat vaping behind the wheel like any other distraction: avoid fiddling with devices, refilling, or adjusting while moving.
- Never vape cannabis while driving or in a highway‑moving vehicle, and be aware of any new minor‑protection laws coming into force (like HB 544, if it passes).
- If stopped and cited, focus on whether your driving was unsafe, not just whether you were vaping, and consider consulting a traffic‑law or DUI attorney if you face charges.
SOURCES :
- https://ecigator.com/guide/maryland-vaping-smoking-driving-laws/
- https://mgaleg.maryland.gov/mgawebsite/Legislation/Details/hb0585?ys=2014RS&search=True
