As we head into the 4th of July weekend, the Arizona Department of Public Safety is reminding drivers not to drink before getting behind the wheel.
"We as Arizonans have to put an end to this, and we have to no longer have tolerance, I need you to be your friends designated driver, I need you to not let your friends and family drive impaired," said DPS Col. Frank Milstead.
Officers from agencies around the state will be out in force looking for impaired drivers. This year DPS troopers will be using brand new SUV's that have been specially marked for use in DUI enforcement.
"All of the markings are ghost markings, so they're colored the same as the vehicle, so it's a little less noticeable, but at night you're going to see them light up really big," said DPS Trooper Rebecca York.
"You've got dual radar, front and rear, we have a camera system that films the front and the back seat, so any of our people who visit the back, we're going to be able to get them on camera as well," said York.
If you're heading out of town, be prepared for packed roads.
ADOT says traffic on the I-17 doubles during the holiday weekend, and one crashed or stalled semi truck could lead to major backups.
"Be prepared, bring extra water, have some snacks in your car, make sure your cell phone is charged and be patient," said Dallas Hammit with ADOT.
One other reminder, it is illegal to stop on the freeway to watch fireworks, extra officers will be patrolling the freeways to enforce that law.