If you are driving a vehicle in California, you have agreed to a chemical test of your breath or blood to determine the alcohol and/or drug content, if you are lawfully arrested and suspected of driving under the influence of alcohol, drugs, or a combination of alcohol and drugs, (implied consent). The required chemical test must be given after a lawful arrest. If you refuse, you may suffer harsher consequences through the DMV and in the court.
The preliminary alcohol screening (PAS) test, the handheld breath test that is given at the scene, is just a field sobriety test. You can and should refuse to take that test, as well as any other field sobriety tests, unless you are under 21 or on DUI probation.
Once arrested, you must provide a sample of your breath or blood. However, in some instances, such as the other tests are not available, drugs are suspected and you cannot provide a blood test, or you have a medical condition that does not allow you to provide a breath or blood sample, a urine test may be offered instead.
If you fail to submit to a chemical test after a lawful arrest, the DMV will take immediate action on your driving privileges. You will be given notice that your driver's license will be suspended 30 days after the arrest unless you request a hearing within 10 days after the arrest date. If you fail to request the hearing, or if the DMV does not set aside the license suspension after the hearing, your license will suspended for one year on your first offense, revoked for two years on your second offense within 10 years, and revoked for three years on your third offense within 10 years. (Note, this is separate from any action that the court may take against your license in the criminal portion of your case.)
If a DMV hearing is requested, the Administrative Per Se (APS) Hearing will only address four issues: