Double demerit penalties will now apply to West Australian motorists caught using their mobile phones while driving and running red lights during holiday periods.
Road Safety Minister Liza Harvey said the change would come into effect in time for the Easter long weekend and would be reviewed after three years.
"We know that both running red lights and using your mobile phone while driving are linked to fatal and serious crashes," she said.
"We don't want anybody to lose a loved one on our roads over the Anzac and Easter holidays."
Double demerits already apply to drink and drug driving, speeding and not using seatbelts.
Earlier this year, the Road Safety Council undertook a review of the double demerits system and advised that illegal mobile phone use and running red lights should be included.
Over the past five years, road fatalities had dropped by 30 per cent, but WA still had one of the worst road tolls in Australia, Ms Harvey said.
Double demerit penalties will be enforced between April 17 and 21, and between April 24 and 27.
