Many pet parents allow their dogs to be free in the car. However, this can be very dangerous. Just how human seat belts can save lives and help protect us in car accidents, a dog car harness can be the difference between life and death for your dog in a hazardous event. In addition, using a dog harness for car rides helps protect your dog, yourself, other passengers and drivers on the road. Additionally, it’s against the law to drive with an unrestrained dog in many places—including 8 US states.