Arizona Motor Vehicle Department
Regulations for Interlock Term
After conviction of any DUI, an interlock is required to reinstate your driver’s license. Our clients often think that after their conviction, they can still drive – but often, they have been misinformed. Call us for guidance.
1. Install Device
- After the interlock is installed on your car, you MUST go to the MVD to re-instate your driver’s license. Your interlock period begins when this is done.
2. Accuracy Checks
- These check-ups must be performed at least once a month for the first three months, and every sixty days after until the device is removed. There is a seven-day grace period to have device checked; if that deadline is violated, the MVD will restart your term from the beginning.
3. Random Retests
- You are required to take random tests while vehicle is running.
- The first test will be 5 to 15 minutes after the vehicle is started.
- Then a test will be required every 15 to 45 minutes after the first, as long as the vehicle is running.
- MVD will attempt to extend your term for a year for each missed or failed retest.
4. Zero Tolerance Fail = BAC .03% to .0799%
- Any BAC .03% and over will not allow car to start.
- Under 21 years of age: any BAC .03% and over is considered a violation and a year is added to the term.
5. Violation Fail = BAC .08% and up
- Car will not start
- Over 21: after 2 violations in the term, you will be required to have the interlock for an additional 6 months.
Time required with Device
- 1st Offense Basic DUI = 12 months (may be eligible for 6-month deferment if qualified by MVD)
- 2nd Offense Basic DUI = 12 months
- 1st Offense Extreme DUI = 12 months
- 2nd Offense Extreme DUI = 12 months
- 1st Offense Super Extreme DUI = 18 months
- 2nd Offense Super Extreme DUI = 24 months
- Class 4 Felony Aggravated DUI = 24 months
- Class 6 Felony Aggravated DUI = 24 months
