More than one in four people in Northern Ireland still drive after having one drink.
Road Safety Minister Alex Attwood said he was concerned by the figures, which were published in the annual Road Safety Monitor Survey.
The minister is currently drawing up a bill that will effectively introduce a zero alcohol limit for novice drivers who are in their first two years of driving.
“At present a quarter of drivers are taking a risk by driving after having one drink,” he said.
“I plan to bring this bill to the Assembly ... with a view to the legislation being passed by summer 2013. My message is clear — never ever drink and drive.”