The Government is considering making it illegal within the next 10 years for a child under the age of 10 to travel in a car without using a booster seat.
The initiative is part of the Government's proposed 10-year strategy to improve safety on New Zealand roads, unveiled on Wednesday.
Current law means children between the ages of five and eight only have to use a child restraint if it is fitted in the car.
Transport Minister Steven Joyce says a law change to make booster seats mandatory is not a top priority, but the Government at least wants parental attitudes to change.
He says a combination of education and enforcement may be the way to convince parents to use the seats for children up to 10 years old, but wide consultation is needed.
Legal enforcement for the use of the seats has support from organisations Safekids and Plunket.
Plunket's national safety adviser Sue Campbell says considerable numbers children come out of booster seats soon after the age of five, so anything that will make travel for them safer is a good thing.
The rates of road death and injury in New Zealand children between the ages of five and nine are some of the highest in the OECD.
