Extreme & Super Extreme DUI
Arizona separates DUI charges into tiers based on blood alcohol concentration, and the jump from a standard DUI to an extreme or super extreme DUI is steep. If your BAC tested at 0.15 or above, you are not just facing a regular DUI charge. You are facing enhanced penalties that include significantly more jail time, higher fines, and longer ignition interlock requirements.
These cases are prosecuted aggressively, but they are also highly defensible. The reason is straightforward: the entire case hinges on a number. That number comes from a machine or a laboratory process, and both can be challenged. If we can undermine the reliability of the BAC result, the enhanced charges may not stand.
Extreme DUI Explained
Under A.R.S. 28-1382(A)(1), an extreme DUI is charged when a driver has a BAC between 0.15 and 0.199 within two hours of driving or being in actual physical control. A first offense carries 30 consecutive days of jail time, fines and assessments around $2,500, a 90-day license suspension, and a mandatory ignition interlock device for at least 12 months. Under A.R.S. 28-1382(I), the judge may suspend all but 9 of those 30 days if the defendant equips any vehicle they operate with a certified IID for 12 months.
Actual court costs often exceed these base amounts once mandatory surcharges and assessments are added (typically 15–20% higher).
A second extreme DUI within 84 months raises the floor to 120 days of jail, fines near $3,800, a one-year license revocation, and extended interlock requirements.
Disclaimer: The penalty information on this page is based on Arizona Revised Statutes and is current as of March 2026. Penalties described are statutory minimums and may not reflect the full range of consequences in a specific case. Arizona DUI law changes periodically through legislative action and court decisions. This page is not a substitute for legal advice from a licensed attorney who can evaluate the specific facts of your case. Contact Arizona DUI Guys for a case-specific consultation.
Last Verified: March 2026. Penalty information should be re-verified after each Arizona legislative session at azleg.gov.
Super Extreme DUI Explained
A super extreme DUI under A.R.S. 28-1382(A)(2) applies when the BAC is 0.20 or higher. First-offense minimums include 45 consecutive days of jail, fines around $2,750, and an interlock period of up to 18 months. Under A.R.S. 28-1382(I), the judge may suspend all but 14 of those 45 days if the defendant equips with a certified IID for 12 months. Second offenses bring 180 days of jail and higher financial penalties.
Actual court costs often exceed these base amounts once mandatory surcharges and assessments are added (typically 15–20% higher).
A BAC of 0.20 is not as unusual as it sounds. A person who weighs 160 pounds and has five drinks over two hours can blow a 0.20. That is not blackout-level intoxication for many people, yet the penalties treat it as a categorically more serious offense.
Defense Strategies for High-BAC Cases
The single most important fact in an extreme or super extreme DUI case is the BAC number. If we can challenge that number effectively, the enhanced charges become vulnerable.
We handled a case not long ago where the breath machine showed a 0.159—just barely over the extreme threshold. Our team pulled the calibration records and found the Intoxilyzer had been serviced late by almost two weeks. That gap gave us the leverage to negotiate the charge down to a standard DUI, which saved our client three weeks of additional jail time.
Breath test challenges focus on machine calibration, maintenance records, operator certification, the observation period, and whether the testing protocol was followed correctly. Arizona requires a 15-minute continuous observation period before a breath test. If the officer looked away, left the room, or failed to ensure you did not belch, vomit, or put anything in your mouth during that window, the test result can be challenged.
Blood test challenges focus on the chain of custody, the qualifications of the person who drew the blood, the type of kit used, the mixing procedure, and the laboratory analysis. Blood samples must be preserved with specific anticoagulants and stored properly. Fermentation of an improperly preserved sample can artificially elevate the reported BAC.
The two-hour rule is also critical. Arizona law requires that the BAC result reflect a measurement taken within two hours of driving or actual physical control. If there was a significant delay between the stop and the test, and the defense can show that the BAC may have been below the extreme threshold at the time of driving, the enhanced charge is on weaker ground.
Independent testing is another tool. Arizona law entitles defendants to have their blood sample independently analyzed by a laboratory of their choosing. Discrepancies between the state’s results and the independent lab’s results can create reasonable doubt about the accuracy of the BAC.