So far this year 54 people have died on the roads, just two short of the overall total for last year.
Officers have been ordered to “take no prisoners”, say police sources.
“Anyone caught wearing no seat belt or using their mobile phone while driving will be hit with a £60 fine and three penalty points immediately,” said a source.
“The chiefs are determined to crack down on those driving and breaking the law.”
The move was announced at a meeting of the Policing Board on Thursday.
In the first eight months of 2013, 40 people had died on the roads.
PSNI Assistant Chief Constable Stephen Martin, who oversees road traffic policy, said the crackdown would start today.
“Because of our concern with the road deaths this year we have decided that, from tomorrow, we are going to take a firmer approach in relation to some offences on Northern Ireland’s roads,” he told the board.
“From today, Friday 5th September, if you are caught speeding, if you are caught using a phone whilst driving, or if you are caught not wearing your seat belt, you can expect to get a ticket and that ticket will mean a £60 fine and three penalty points.
“We don’t want to give you a ticket, we want to find you driving responsibly within the limitations of the road and within the posted speed limits – that’s what we want to find.
“But, if we find that you are in breach of one of those three offences we will give you a ticket and we make no apology for that because we would much rather give you a ticket than be knocking your family’s door to tell them you have lost your life on the road.”
He said officers were being told to hit all offenders with tickets.
“Northern Ireland is a small place, we should not have 54 road deaths,” he added