EXTRA police will continue to patrol the region's roads today as part of the annual Labour Day traffic-enforcement campaign Operation Slowdown.
Double demerit points are in place during the long weekend, to discourage people from taking risks during a busy time on the state's roads.
The operation ends at midnight tonight.
Three people have died on the roads so far during this year's four-day operation a 34-year-old woman on Saturday night, an eight-year-old boy on Friday, and a 20-year-old man during the early hours of Friday morning, all in Sydney.
In the first two days of the campaign, 65 people were charged with drink-driving and 3110 traffic infringement notices were issued.
On Saturday alone, a total of 44,886 breath tests were conducted, with 30 drink-driving charges laid 54 fewer charges than day two of the operation last year.
During last year's Operation Slowdown, five people died and 221 were injured in 367 crashes on NSW roads.
More than 4100 were caught speeding and 373 people were charged with drink-driving.
In the northern region, eight people were caught drink-driving and 19 were nabbed for speeding.
Four people were fined for not wearing seatbelts, and 28 people got tickets for other traffic offences.