Smoking in cars with children will be banned in Wales from October 2015.
A ban has been passed in Wales to stop people smoking in cars with children under the age of 18 present.
The ban will come into effect from October this year and those caught breaching the ban will face a £50 fine for each offence.
Smoking in enclosed public spaces is already against the law after legislation was introduced in 2007 to protect members of the public from second hand smoke. In Wales, it has been illegal to smoke in public service and work vehicles for eight years.
The Welsh Assembly describes the threat of exposure to second hand smoke as a real and substantial threat to children's health. The risk is higher in the confined space of a car as they breathe more rapidly and therefore inhale more smoke than adults.
It will be the duty of the driver to ensure no passenger lights-up while travelling in a privately owned vehicle with a person under 18 present.
The police will enforce the regulation and hand out the £50 fines, while also enforcing compliance with the laws on seatbelts and child car seats.
Health and Social Services Minister, Mark Drakeford, described the ban as a major step forward for public health in Wales.
"I'm very pleased members of the National Assembly for Wales have approved our plans to introduce a ban on people smoking in cars when children under the age of 18 are present.
"These regulations aim to protect vulnerable children from the harms associated with second hand smoke when travelling in private vehicles."