For roadside assistance, travelers may call the police by dialing 120 or the fire department by dialing 122 or 123. Cellular telephone service covers most areas frequented by tourists. Valid U.S. driver's licenses and international driving permits are accepted in Guatemala. Guatemala's road safety authorities are the Department of Transit and the Joint Operations Center of the National Police. Drivers use the right-hand side of the road in Guatemala, and speed limits are posted depending on the condition of the road.
Speed limits are different in rural and urban areas.
Turning right on red is not permitted unless otherwise posted, and drivers must yield when entering a traffic circle. Seat belts must be worn in Guatemala, but there are no laws regarding the use of child safety seats. It is against the law for drivers to operate cellular phones while driving. People found driving under the influence of alcohol or other drugs are arrested and may serve jail time. In an accident resulting in injury or death, every driver involved is taken into custody until a judge determines responsibility in a re-enactment of the accident.