The rules of the road will probably be second nature to you by the time you become 18, but there are some changes and more responsibilities.


Q: What driving laws change when I turn 18?

APrimarily, your liability. When you become 18, you are legally an adult and you assume liability for your own license, car registration, traffic violations, and accidents. It is completely your responsibility to know and follow the rules of the road, whether it’s in Arizona law, the Arizona Driver’s License Manual, or local city ordinances. You may also change from a graduated driver’s license to an Under 21 driver’s license.


Q: How do I get a new driver license?

A: Drivers under the age of 18 are initially given a graduated driver license that restricts when the driver may be on the road and who they may drive with. When a person turns 18 this restriction is removed and the adult needs to get a new license. To get a new license, go to and select “Driver License Replacement.” You may use the same process when you turn 21 or if you lose your license.


Q: Am I required to get my own car insurance now?

A: No. Someone else may choose to place you on their insurance policy. However, you are responsible for ensuring your vehicle has a liability policy that provides adequate coverage outlined in A.R.S. §28-4009. It is important to consult your insurance provider and review the law to ensure proper coverage. Additionally, you must have proof of insurance, vehicle title, and registration with you at all times (A.R.S. §28-4135).


Q: What about road rage?

A: Another driver may have cut you off and almost caused an accident but you should think twice before taking matters into your own hands. Acts of “road rage” may be a misdemeanor or a felony, resulting not only in the suspension of your driver’s license but a fine or jail sentence as well (ARS §28-695).


Laws may have changed since the last time this article was updated.  The current and most up-to-date laws can be accessed here.