DWI vs DUI: What’s the Difference? 

Many drivers in Glendale face confusion when they hear the terms DWI vs DUI used interchangeably, particularly those who have relocated from states with different terminology. Arizona law uses specific language to define impaired driving offenses, and understanding these distinctions can make a significant difference when facing charges or navigating the legal system. At The Law Offices of John Phebus Criminal and Personal Injury Lawyer, our team helps clients in Glendale and throughout Maricopa County understand the state’s unique approach to impaired driving charges and how these cases unfold in Maricopa County courts.

What Is a DWI?

DWI stands for “Driving While Intoxicated,” a term used in states such as Texas, New York, and New Jersey. In some jurisdictions, DWI refers specifically to alcohol impairment, while DUI covers drug-related cases, though this varies widely across the country.

Arizona law does not recognize DWI as a legal charge. Drivers stopped for suspected impaired driving in Glendale face DUI charges instead. Understanding this distinction matters because legal terminology affects how cases proceed, what penalties apply, and how defense strategies develop.

What Is a DUI?

DUI stands for “Driving Under the Influence,” and Arizona uses this term exclusively for all impaired driving offenses. Under Arizona Revised Statutes § 28-1381, a person commits DUI by operating or being in actual physical control of a vehicle while impaired to the slightest degree by alcohol, drugs, vapor-releasing substances, or any combination thereof.

A standard DUI applies when a driver’s BAC is 0.08 percent or higher within two hours of driving or being in control of the vehicle. Arizona’s “actual physical control” rule means drivers may face charges even when not actively driving if they possess control over the vehicle while impaired, such as sitting in a parked car with keys in the ignition or within reach.

Extreme DUI in Arizona

Extreme DUI applies when a driver’s blood alcohol concentration measures 0.15 or higher but less than 0.20. Arizona Revised Statutes § 28-1382 establishes enhanced penalties for this elevated BAC range. The law recognizes higher alcohol concentrations as more dangerous and applies correspondingly stricter consequences.

Glendale drivers charged with Extreme DUI face mandatory jail time, substantial fines, license suspension, and ignition interlock device requirements. The minimum jail sentence for a first-time Extreme DUI conviction starts at 30 consecutive days, though judges may suspend part of this sentence under specific conditions. Law enforcement throughout Maricopa County aggressively enforces Extreme DUI charges, particularly during holiday periods and special enforcement campaigns.

Super Extreme DUI in Arizona

Super Extreme DUI charges apply when a driver’s blood alcohol concentration reaches 0.20 or higher. This represents the most serious DUI category based solely on BAC levels in Arizona. The same statute governing Extreme DUI addresses this elevated category with even harsher mandatory penalties.

First-time Super Extreme DUI convictions carry a minimum of 45 consecutive days in jail. Fines increase substantially, and license revocation periods extend beyond standard or Extreme DUI timeframes. Courts also mandate ignition interlock device installation for extended periods following license reinstatement. Prosecutors in Maricopa County pursue these charges vigorously, viewing BAC levels at 0.20 or above as evidence of severe impairment.

The Difference Between a DUI and DWI in Arizona

Arizona does not distinguish between DWI vs DUI. All impaired driving offenses, whether involving alcohol, drugs, or a combination of both, are prosecuted under the DUI statute.

This approach differs from states such as New York, where DWI is a more serious offense than DUI, or Texas, where DWI applies to adults while DUI applies to minors. Arizona simplifies matters by using one consistent term for all impaired driving cases.

Attorneys in Glendale work exclusively within Arizona’s DUI framework. Court procedures, sentencing rules, and legal precedents all refer to DUI. Drivers moving from other states must understand that their previous state’s terminology does not apply in Arizona.

What Are the Consequences of a DUI?

DUI convictions carry mandatory penalties that include jail time, fines, license suspension, alcohol screening, and ignition interlock installation. The severity depends on BAC level, prior convictions, and aggravating factors such as accidents or injuries.

• First-time Standard DUI: Minimum 10 days in jail (all but one may be suspended if the defendant completes screening and education), fines over $1,500, 90-day license suspension, and 12-month Ignition Interlock Device (IID) requirement.
• Extreme DUI (first offense): At least 30 days in jail, fines exceeding $2,500, and an IID for 12 to 18 months.
• Super Extreme DUI (first offense): At least 45 days in jail, fines exceeding $2,750, and an IID for 18 months.
• Second DUI within 84 months (7 years): Minimum 90 days in jail, longer license revocation, and extended IID terms.

Beyond legal penalties, Glendale drivers may face professional and financial consequences. Convictions can affect employment, professional licensing, and insurance. Commercial drivers lose CDL privileges, and individuals in regulated professions, such as healthcare or education, may face disciplinary action. Insurance premiums often rise sharply, and some carriers refuse coverage entirely.

A DUI conviction also creates a permanent criminal record accessible to employers and landlords. Arizona does not allow full expungement of DUI convictions, though defendants may request a set-aside after completing all sentence requirements.

Which Is More Common in Arizona: a DUI or a DWI?

Because Arizona law recognizes only DUI, every impaired driving case in Maricopa County proceeds under that designation. Standard DUIs, involving BAC levels between 0.08 and 0.149 percent, are the most common. However, Extreme and Super Extreme DUIs occur frequently due to Arizona’s strict enforcement and roadside testing practices.

Contact The Law Offices of John Phebus to Help You

Facing DUI charges in Glendale requires immediate action and experienced legal representation familiar with Arizona’s specific statutes and court procedures. The Law Offices of John Phebus Criminal and Personal Injury Lawyer provides dedicated defense for clients in Glendale and throughout Arizona. Our team understands how Maricopa County courts handle DUI cases and works to protect your rights, challenge evidence, and pursue the best possible outcome. Call us at (623) 847-7117 today to discuss your situation and learn how we can help you navigate Arizona’s DUI laws.

Client Reviews

What our clients are saying about us

Luis Chavez

1 month ago

John is an expert at what he does. If you need a great lawyer, he’s the one to call. He will guide you through difficult times with ease. His communication is excellent, always keeping you informed every step of the way. I’m grateful to have had John as my lawyer now I can move forward and leave this behind me. I highly recommend him 100%, so don’t hesitate to reach out. Thank you, John, for your dedication and hard work!

GBP Review: Luis Chavez