In Arizona, your license will be suspended for 90 days if you refuse a chemical test. This falls under the “implied consent” law, adapted by most states. Under the implied consent law, if you are operating a motor vehicle, you have given your consent to take a chemical test, so you cannot refuse without penalty.

Remember, chemical tests are blood, urine, and breath tests. These are the only tests that you are required to take if asked by an officer. You aren’t officially required to take any roadside tests or to answer any questions, so politely refusing is often your best DUI defense.