GRAND JUNCTION, Colo. (KKCO) - Law enforcement agencies across the state are teaming up to crack down on people who puff. Maybe you're one of them and don't even know it.
Puffing is when you warm up your car. In Colorado, leaving your car running while you're not in it is illegal.
Sunday through Jan. 16 is "Puffer Week." Officers are encouraged to patrol the streets writing tickets or giving out warnings to people who leave their cars unattended.
A motor vehicle is stolen almost every 26 seconds in the United States.
For more information on the law, click on the related story link below.