The New Jersey state police will begin the first of three enforcement periods on the New Jersey Turnpike.

The period will last for six days, beginning Tuesday. Troopers will be on the lookout for motorists speeding, distracted driving or driving aggressively. They will also be looking for people without seatbelts or using cellphones.

This is all part of the "2015 I-95 Challenge." There will be other enforcements periods in August and December.