From 1 October 2015 is illegal to smoke in private vehicles that are carrying someone under 18.

From 1 October 2015 is illegal:
- for retailers to sell electronic cigarettes (e-cigarettes) or e-liquids to someone under 18
- for adults to buy (or try to buy) tobacco products or e-cigarettes for someone under 18
- to smoke in private vehicles that are carrying someone under 18

Rules about smoking in private vehicles
Private vehicles must be smokefree if they are enclosed, there is more than one person present and one of them is under 18.

The rules don’t apply to e-cigarettes.

Penalties
The fixed penalty notice fine is £50 (for person who smokes and for driver). Somebody who commits both offences could get 2 fines. 
Private vehicles must be carrying more than one person to be smokefree so somebody who is 17 and smoking alone in a private vehicle won’t be committing an offence.

Enforcement officers (usually the police) will use their discretion to decide whether to issue a warning or a fixed penalty notice, or whether to refer an offence to court.

What classes as an enclosed vehicle
The legislation covers any private vehicle that is enclosed wholly or partly by a roof. A convertible car, or coupe, with the roof completely down and stowed is not enclosed and so isn’t covered by the legislation. But a vehicle with a sunroof open is still enclosed and so is covered by the legislation.

Sitting in the open doorway of an enclosed vehicle is covered by the legislation.

The rules apply to motorhomes, campervans and caravans when they are being used as a vehicle but don’t apply when they are being used as living accommodation.

The rules don’t apply to:

- boats, ships and aircraft, as they have their own rules
- work vehicles and public transport, as they are already covered by smokefree legislation

gov.co.uk

It will be an offence for a person of any age to smoke in a private vehicle that is carrying someone who is under 18