Alcohol and Drug Limits

If you are 21 or older and drive with a BAC of 0.08 percent or more

Arizona law prohibits drivers 21 and older from operating a vehicle with a BAC of 0.08 percent or higher.

If you are under 21 and have any alcohol in your system

Drivers under 21 may not drive with any detectable alcohol. Even 0.01 percent BAC is illegal.

If a commercial driver has a BAC of 0.04 percent or more

Commercial drivers are held to a stricter standard and are impaired at 0.04 percent BAC.

If you refuse a chemical test when stopped for suspected DUI

Refusing a blood, breath, or urine test results in a one-year automatic suspension under Arizona’s Implied Consent Law.

If you are stopped and test above the legal BAC limit

Arizona law sets a 0.08% BAC limit for regular drivers. Testing over this triggers immediate penalties.

When your BAC level is between 0.08% and 0.149%

This level of impairment brings fines, license suspension, alcohol education, and possible jail time.

If your BAC is 0.15% or higher at arrest

Arizona categorizes this as Extreme DUI, resulting in harsher penalties, including longer mandatory jail time.

When your BAC exceeds 0.20%

At this level, penalties become much more severe, including 45 days in jail and higher fines.

If you refuse to take a breath, blood, or urine test

Arizona’s Implied Consent Law enforces a 1-year suspension for first-time refusal, even without a DUI conviction.

When you are convicted of DUI with a child passenger

Driving impaired with a minor elevates the offense to a felony with stricter consequences.

If you are convicted of a second DUI within 7 years

Repeat offenders face a minimum of 90 days in jail, larger fines, and ignition interlock device requirements.

When driving a commercial vehicle under the influence

A BAC of 0.04% or more can result in CDL disqualification, even if it’s a first offense.

If you are under 21 and test positive for any alcohol

Arizona has a strict zero-tolerance policy for drivers under 21 even trace alcohol can result in DUI charges.

When DUI causes injury or death

Serious injury or fatal accidents caused by impaired driving can result in felony charges and years of imprisonment.

If caught driving under the influence of prescription medication

Prescription medications that affect driving ability are subject to DUI laws if impairment is evident.

If you drive under the influence with a minor in the vehicle

Driving impaired with someone under 15 in the car raises the charge to a felony.