Double demerits will begin tonight and run through the Christmas and New Year period.

The double demerit period kicks-off at 12.01 am on Friday, December 20 until 11.59 pm on Wednesday, January 1.

Motorists caught for speeding, seat belt, motorcycle helmet and mobile phone offences during this time will cop double the demerit points.

NSW Police will also be targeting other poor driver behaviours, including drink-and-drug-driving.

Image: Getty/Nigel Killeen