Can You Wait Out an Ignition Interlock in Arizona? ARS 28-3319

Can You Wait Out an Ignition Interlock in Arizona?

That is the short answer, and it surprises almost everyone who asks. The interlock is not a penalty that expires on a calendar; it is a condition of getting your license back, and the statutes are written so that ignoring it costs time rather than saving it. Here is exactly how the clock works, what waiting forfeits, what happens if you drive in the meantime, and the fastest lawful way to be done with the device.

Why Doesn’t the Interlock Clock Run While You Wait?

Two provisions do the work. First, A.R.S. § 28-1461(A)(2): MVD shall not reinstate your driving privilege, or issue the special interlock restricted license, until you have installed a functioning certified device in every vehicle you operate and provided proof of installation. There is no “I waited long enough” alternative in the statute, and no exception for people who say they are not driving. Second, A.R.S. § 28-3319(F): the interlock period begins on the date you complete the court-ordered alcohol screening, education, or treatment and are otherwise eligible to reinstate, and you are credited only for time the device is actually installed after MVD authorizes it. A person who finishes treatment, becomes eligible, and then does nothing for a year has a license that is still suspended and an interlock requirement that has not been satisfied by a single day of compliance.

How Long Do You Have to Have an Interlock in Arizona?

Under A.R.S. § 28-3319(D) the required period is set by the conviction:

• 12 months for a first standard DUI (§ 28-1381), an extreme DUI at .15 to .199, a DUI with a child under 15 based on a standard DUI, or a second standard or extreme DUI within 84 months;
• 18 months for a super extreme DUI at .20 or higher (§ 28-1382(A)(2));
• 24 months for a super extreme DUI with a prior in 84 months, and for aggravated DUI under § 28-1383 (suspended license, third offense, interlock-required, or wrong-way prongs).

Two rules shorten it, and both require compliance rather than waiting. Under § 28-3319(H), a first-offense standard DUI driver who installs the device, completes a 16-hour alcohol education program, keeps the interlock on every vehicle, records no more than one failed start at .08 or above, and was not in an injury or property-damage crash has the second six months deferred permanently once six months have run from installation. Under § 28-3319(J), time incarcerated for a drug-only DUI is credited against the period. Neither applies to someone who never installed. See the full list of Arizona DUI requirements after conviction.

What Does Waiting Actually Cost You?

• No license. Every month without the device is a month suspended, under § 28-1461(A)(2). Nothing accrues;
• The six-month deferral. The first-offense credit in § 28-3319(H) runs from the installation date and requires an unbroken compliance record. Waiting a year and then installing means twelve months of interlock instead of six;
• The paperwork does not age out. Reinstatement also requires proof of financial responsibility (an SR-22 filing) under § 28-3319(A) and proof of treatment completion under § 28-3319(C). Those conditions wait as long as you do;
• Employment and insurance run on the driving record, which shows a suspended status and the interlock notation the entire time.

What If You Can’t Afford a Car or the Interlock?

This is the most common real-world version of the question, and the statute gives it a hard answer: money is not an exception. Under A.R.S. § 28-1461(A)(1) the driver pays the installation and maintenance costs of the device, and nothing in Arizona’s interlock article (§§ 28-1461 through 28-1469) creates a hardship waiver, a reduced-fee program, or a state subsidy for people who cannot pay. Providers set their own installation and monthly fees, and some offer payment arrangements, but that is a private business question, not a legal exemption.

If you do not own a car, the device is required in “each motor vehicle operated by the person,” so the practical options are:

• Install it on the car you will actually drive, even if it belongs to a spouse, parent, or partner. The owner must consent, and the law is built for this: under A.R.S. § 28-1464(A) a person may only lend a vehicle to an interlock-restricted driver if it is equipped, and under § 28-1464(B) you must tell the owner about your requirement. Other people can drive the equipped car normally, but no one may blow into the device for you (§ 28-1464(C) and (D));
• Do not drive at all until you can. Staying off the road is lawful. Your license simply remains suspended, and because the clock only earns credit while a device is installed, the requirement will be waiting, undiminished, when you eventually get a car. Nothing about it expires;
• Never borrow an unequipped car “just this once.” That is a Class 1 misdemeanor under § 28-1464(G), it extends the requirement by up to a year under § 28-1464(K), and if you are impaired it is a felony. The only carve-out is a “substantial emergency” under § 28-1464(L), meaning no one else is reasonably available to drive in an actual emergency.

There is also no financial exception hidden in the medical rule: § 28-3319(E) swaps the device for monthly testing only for a documented medical condition, not for cost. If the interlock is genuinely out of reach, the lawful path is to hold off on reinstatement until it is not, use rideshare or transit in the meantime, and install the moment a vehicle is available so the credit starts running.

What Happens If You Drive Without the Interlock?

This is where waiting turns from expensive into dangerous. Driving while your license is still suspended is a Class 1 misdemeanor under A.R.S. § 28-3473; see driving on a suspended license in Arizona. Operating a vehicle without the required device once your privilege is limited is a Class 1 misdemeanor under A.R.S. § 28-1464, and a conviction requires MVD to extend the interlock requirement by up to one year under § 28-1464(K). Tampering, failed .08 starts, missed compliance reports, or failed rolling retests trigger six-month extensions under § 28-1461(E), and under § 28-1461(F) the underlying period does not even begin until an extension ends. And a DUI committed while you are interlock-required is aggravated DUI under § 28-1383(A)(4), a Class 4 felony with mandatory prison time, regardless of your blood alcohol tier. Our guide to when driving without an interlock becomes a felony covers that charge in depth.

Are There Any Exceptions to the Interlock Requirement?

• Medical inability. Under § 28-3319(E), a person whose documented medical condition prevents using the device for the entire period is placed on monthly alcohol and drug screening instead, for the same length of time. It substitutes one requirement for another; it does not shorten anything;
• Drug-only DUI. The interlock is required for convictions “that involved intoxicating liquor” or that specifically order it; a court may still order one in a drug case under § 28-1383(M) and similar provisions, and incarceration time is credited under § 28-3319(J);
• Out-of-state drivers. Arizona applies the requirement to nonresidents’ Arizona privilege; how a home state treats it is a question of that state’s law, and most honor the Arizona record.

There is no exception for not owning a car, not driving, or letting time pass.

What Is the Fastest Lawful Way to Be Done With the Interlock?

• Finish screening, education, or treatment as early as the court allows, because § 28-3319(F) starts the clock only when that is complete;
• Install the device the day you become eligible and file proof; the credit in § 28-3319(F) runs from that authorization;
• File the SR-22 and reinstatement paperwork at the same time (§ 28-3319(A));
• Keep the 90-day compliance and calibration reports current under § 28-1461(A)(1)(c) and (d), since a missed report is a six-month extension;
• First offenders: complete the 16-hour program and protect the § 28-3319(H) deferral, which turns twelve months into six;
• If your suspension is still pending, a special interlock restricted license may let you drive during it, and that installed time is credited.

Related: how DUI license suspension works, how to stop the suspension after a DUI, and whether you go to jail for a DUI.

How Tamou Law Group Handles Interlock Cases

We treat the interlock as part of the DUI case, not an afterthought: we time treatment and installation so the statutory clock starts as early as possible, we protect the first-offense deferral, we contest false violations and extensions at MVD hearings, and we defend the driving-without-interlock and aggravated DUI charges that follow when someone tried to wait it out. Members of the National College for DUI Defense, we handle the criminal case and the MVD side together.

Related guides: aggravated DUI in Arizona, felony DUI defense in Phoenix, driving without an interlock, and our Arizona DUI charges hub. Call 623-321-4699, 24/7.