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ARS 28-1381: Driving Under the Influence

ARS 28-1381: Driving Under the Influence

Michael Tamou, Arizona criminal defense attorney

Michael Tamou

Founding Attorney · DUI Defense

5.0 · DUI Defense

The complete text of A.R.S. § 28-1381 on driving under the influence, what the State has to prove, and the sentencing range, with a violation charged as a class 1 misdemeanor and exposure reaching up to 6 months in jail.

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Michael Tamou, Arizona criminal defense attorney

Michael Tamou

Founding Attorney · DUI Defense

★★★★★ 5.0 · DUI Defense

Written and legally reviewed by Michael Tamou, Founding Attorney of Tamou Law Group, PLLC. Last updated September 4, 2026.

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What the State Must Prove Under § 28-1381

A.R.S. § 28-1381 is the Arizona statute on driving under the influence. The statute sets out 5 ways the offense can be committed. A violation is a class 1 misdemeanor, depending on the paragraph charged and what the State can prove. The maximum exposure is 6 months in jail.

A. It is unlawful for a person to drive or be in actual physical control of a vehicle in this state under any of the following circumstances:

  1. While under the influence of intoxicating liquor, any drug, a vapor releasing substance containing a toxic substance or any combination of liquor, drugs or vapor releasing substances if the person is impaired to the slightest degree.
  2. If the person has an alcohol concentration of 0.08 or more within two hours of driving or being in actual physical control of the vehicle and the alcohol concentration results from alcohol consumed either before or while driving or being in actual physical control of the vehicle.
  3. While there is any drug defined in section 13-3401 or its metabolite in the person’s body.
  4. If the vehicle is a commercial motor vehicle that requires a person to obtain a commercial driver license as defined in section 28-3001 and the person has an alcohol concentration of 0.04 or more.
  5. While operating a vehicle for hire as defined in section 28-9501 or while providing transportation network services as defined in section 28-9551 as a transportation network company driver as defined in section 28-9551 if the person has an alcohol concentration of 0.04 or more.

The State must prove every element of the paragraph it actually charged, beyond a reasonable doubt. Which paragraph appears on the complaint decides what the case is about, and it is the first thing to check.

Penalties for a § 28-1381 Conviction

ClassMaximum jailMaximum fine
Class 1 misdemeanor6 months$2,500

Felony ranges are set by A.R.S. § 13-702(D) and apply to a first felony conviction that is not dangerous and not repetitive. A dangerous offense (§ 13-704), a repetitive offense (§ 13-703) or a dangerous crime against children (§ 13-705) carries a longer range, and some carry mandatory prison with no probation. Misdemeanor maximums come from §§ 13-707 and 13-802; surcharges are added on top of every fine.

Full Text of A.R.S. § 28-1381

A. It is unlawful for a person to drive or be in actual physical control of a vehicle in this state under any of the following circumstances:

1. While under the influence of intoxicating liquor, any drug, a vapor releasing substance containing a toxic substance or any combination of liquor, drugs or vapor releasing substances if the person is impaired to the slightest degree.

2. If the person has an alcohol concentration of 0.08 or more within two hours of driving or being in actual physical control of the vehicle and the alcohol concentration results from alcohol consumed either before or while driving or being in actual physical control of the vehicle.

3. While there is any drug defined in section 13-3401 or its metabolite in the person’s body.

4. If the vehicle is a commercial motor vehicle that requires a person to obtain a commercial driver license as defined in section 28-3001 and the person has an alcohol concentration of 0.04 or more.

5. While operating a vehicle for hire as defined in section 28-9501 or while providing transportation network services as defined in section 28-9551 as a transportation network company driver as defined in section 28-9551 if the person has an alcohol concentration of 0.04 or more.

B. It is not a defense to a charge of a violation of subsection A, paragraph 1 of this section that the person is or has been entitled to use the drug under the laws of this state.

C. A person who is convicted of a violation of this section is guilty of a class 1 misdemeanor.

D. A person using a drug as prescribed by a medical practitioner who is licensed pursuant to title 32 and who is authorized to prescribe the drug is not guilty of violating subsection A, paragraph 3 of this section.

E. In any prosecution for a violation of this section, the state shall allege, for the purpose of classification and sentencing pursuant to this section, all prior convictions of violating this section, section 28-1382 or section 28-1383 occurring within the past thirty-six months, unless there is an insufficient legal or factual basis to do so.

F. At the arraignment, the court shall inform the defendant that the defendant may request a trial by jury and that the request, if made, shall be granted.

G. In a trial, action or proceeding for a violation of this section or section 28-1383 other than a trial, action or proceeding involving a person who is driving or in actual physical control of a commercial motor vehicle or a vehicle for hire as defined in section 28-9501 or involving a person who is providing transportation network services as defined in section 28-9551 as a transportation network company driver as defined in section 28-9551, the defendant’s alcohol concentration within two hours of the time of driving or being in actual physical control as shown by analysis of the defendant’s blood, breath or other bodily substance gives rise to the following presumptions:

1. If there was at that time 0.05 or less alcohol concentration in the defendant’s blood, breath or other bodily substance, it may be presumed that the defendant was not under the influence of intoxicating liquor.

2. If there was at that time in excess of 0.05 but less than 0.08 alcohol concentration in the defendant’s blood, breath or other bodily substance, that fact shall not give rise to a presumption that the defendant was or was not under the influence of intoxicating liquor, but that fact may be considered with other competent evidence in determining the guilt or innocence of the defendant.

3. If there was at that time 0.08 or more alcohol concentration in the defendant’s blood, breath or other bodily substance, it may be presumed that the defendant was under the influence of intoxicating liquor.

H. Subsection G of this section does not limit the introduction of any other competent evidence bearing on the question of whether or not the defendant was under the influence of intoxicating liquor.

I. A person who is convicted of a violation of this section:

1. Shall be sentenced to serve not less than ten consecutive days in jail and is not eligible for probation or suspension of execution of sentence unless the entire sentence is served.

2. Shall pay a fine of not less than $250.

3. May be ordered by a court to perform community restitution.

4. Shall pay an additional assessment of $500 to be deposited by the state treasurer in the prison construction and operations fund established by section 41-1651. This assessment is not subject to any surcharge. If the conviction occurred in the superior court or a justice court, the court shall transmit the assessed monies to the county treasurer. If the conviction occurred in a municipal court, the court shall transmit the assessed monies to the city treasurer. The city or county treasurer shall transmit the monies received to the state treasurer.

5. Shall pay an additional assessment of $500 to be deposited by the state treasurer in the public safety equipment fund established by section 41-1723. This assessment is not subject to any surcharge. If the conviction occurred in the superior court or a justice court, the court shall transmit the assessed monies to the county treasurer. If the conviction occurred in a municipal court, the court shall transmit the assessed monies to the city treasurer. The city or county treasurer shall transmit the monies received to the state treasurer.

6. If the violation involved intoxicating liquor, shall be required by the department, on report of the conviction, to equip any motor vehicle the person operates with a certified ignition interlock device pursuant to section 28-3319. In addition, the court may order the person to equip any motor vehicle the person operates with a certified ignition interlock device for more than twelve months beginning on the date the person successfully completes the alcohol or other drug screening, education, evidence-based psychotherapy or treatment program requirements of this title and the person is otherwise eligible to reinstate the person’s driver license or driving privilege. The person who operates a motor vehicle with a certified ignition interlock device under this paragraph shall comply with article 5 of this chapter.

7. Shall be required by the department to attend and successfully complete an approved traffic survival school course.

8. At the person’s option, may be ordered by the court to participate in a religious program that is approved by the court. The person’s participation in a religious program must be voluntary, and the purpose of the religious program may not include any effort to coerce the person to adopt or change any religious affiliation or beliefs.

J. Notwithstanding subsection I, paragraph 1 of this section, at the time of sentencing the judge may suspend all but one day of the sentence if the person completes a court ordered alcohol or other drug screening, education, evidence-based psychotherapy or treatment program. If the person fails to complete the court ordered alcohol or other drug screening, education, evidence-based psychotherapy or treatment program and has not been placed on probation, the court shall issue an order to show cause to the defendant as to why the remaining jail sentence should not be served.

K. If within a period of eighty-four months a person is convicted of a second violation of this section or is convicted of a violation of this section and has previously been convicted of a violation of section 28-1382 or 28-1383 or an act in another jurisdiction that if committed in this state would be a violation of this section or section 28-1382 or 28-1383, the person:

1. Shall be sentenced to serve not less than ninety days in jail, thirty days of which shall be served consecutively, and is not eligible for probation or suspension of execution of sentence unless the entire sentence has been served.

2. Shall pay a fine of not less than $500.

3. Shall be ordered by a court to perform at least thirty hours of community restitution.

4. Shall have the person’s driving privilege revoked for one year. The court shall report the conviction to the department. On receipt of the report, the department shall revoke the person’s driving privilege and, if the violation involved intoxicating liquor, shall require the person to equip any motor vehicle the person operates with a certified ignition interlock device pursuant to section 28-3319. In addition, the court may order the person to equip any motor vehicle the person operates with a certified ignition interlock device for more than twelve months beginning on the date the person successfully completes the alcohol or other drug screening, education, evidence-based psychotherapy or treatment program requirements of this title and the person is otherwise eligible to reinstate the person’s driver license or driving privilege. The person who operates a motor vehicle with a certified ignition interlock device under this paragraph shall comply with article 5 of this chapter.

5. Shall pay an additional assessment of $1,250 to be deposited by the state treasurer in the prison construction and operations fund established by section 41-1651. This assessment is not subject to any surcharge. If the conviction occurred in the superior court or a justice court, the court shall transmit the assessed monies to the county treasurer. If the conviction occurred in a municipal court, the court shall transmit the assessed monies to the city treasurer. The city or county treasurer shall transmit the monies received to the state treasurer.

6. Shall pay an additional assessment of $1,250 to be deposited by the state treasurer in the public safety equipment fund established by section 41-1723. This assessment is not subject to any surcharge. If the conviction occurred in the superior court or a justice court, the court shall transmit the assessed monies to the county treasurer. If the conviction occurred in a municipal court, the court shall transmit the assessed monies to the city treasurer. The city or county treasurer shall transmit the monies received to the state treasurer.

7. Shall be required by the department to attend and successfully complete an approved traffic survival school course.

L. Notwithstanding subsection K, paragraph 1 of this section, at the time of sentencing, the judge may suspend all but thirty days of the sentence if the person completes a court ordered alcohol or other drug screening, education, evidence-based psychotherapy or treatment program. If the person fails to complete the court ordered alcohol or other drug screening, education, evidence-based psychotherapy or treatment program and has not been placed on probation, the court shall issue an order to show cause as to why the remaining jail sentence should not be served.

M. In applying the eighty-four month provision of subsection K of this section, the dates of the commission of the offense shall be the determining factor, irrespective of the sequence in which the offenses were committed.

N. A second violation for which a conviction occurs as provided in this section shall not include a conviction for an offense arising out of the same series of acts.

O. After completing forty-five days of the revocation period prescribed by subsection K of this section, a person whose driving privilege is revoked for a violation of this section and who is sentenced pursuant to subsection K of this section is eligible for a special ignition interlock restricted driver license pursuant to section 28-1401.

P. The court may order a person who is convicted of a violation of this section that does not involve intoxicating liquor to equip any motor vehicle the person operates with a certified ignition interlock device pursuant to section 28-3319. On receipt of the report of conviction and certified ignition interlock device requirement, the department shall require the person to equip any motor vehicle the person operates with a certified ignition interlock device pursuant to section 28-3319. In addition, the court may order the person to equip any motor vehicle the person operates with a certified ignition interlock device for more than twelve months beginning on the date the person successfully completes the alcohol or other drug screening, education, evidence-based psychotherapy or treatment program requirements of this title and the person is otherwise eligible to reinstate the person’s driver license or driving privilege. The person who operates a motor vehicle with a certified ignition interlock device under this subsection shall comply with article 5 of this chapter.

Q. A prosecution for a violation of this section involving a collision that resulted in serious physical injury or death as identified in a written accident report completed pursuant to section 28-667 must be commenced within two years after actual discovery of the offense by the state or the political subdivision having jurisdiction or discovery by the state or the political subdivision that should have occurred with the exercise of reasonable diligence, whichever first occurs.

R. For the purposes of this section, “evidence-based psychotherapy” means psychotherapy services that are offered by a psychologist who is licensed pursuant to title 32, chapter 19.1 and who integrates the best available scientific research with clinical expertise based on the context of the patient’s characteristics, culture and preferences.

Source: Arizona Revised Statutes § 28-1381, Arizona Legislative Council revision of 09/20/25. Read the official text on azleg.gov. Statutes change; verify the current version before relying on it.

Our Guides on This Charge

Written by our defense team on how these cases run in Arizona courts.

How Tamou Law Group Defends § 28-1381 Cases

A § 28-1381 case is decided by the paragraph the State charged, not by the statute as a whole. We start with the charging document and the disclosure, identify which subsection the prosecutor has to prove, and test whether the evidence actually reaches every element of it. Where the class turns on a fact such as value, an alleged injury, a prior conviction or the identity of the person involved, that fact is frequently the difference between a class 1 misdemeanor and something far less serious, and it is where these cases are won.

We handle driving under the influence cases across Maricopa County and statewide, from our Scottsdale and Phoenix offices. Call 623-321-4699 any time, or read the statute in full above before you speak to anyone about the case.

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Common Questions

Frequently Asked Questions

What is A.R.S. § 28-1381?

A.R.S. § 28-1381 is the Arizona statute on driving under the influence. A violation is a class 1 misdemeanor, and which class applies depends on the paragraph charged and the facts the State can prove.

Is a violation of § 28-1381 a felony in Arizona?

No. Under the statute a violation is a class 1 misdemeanor, so the exposure reaches up to 6 months in jail. The paragraph charged and the facts decide which class applies.

What is the maximum penalty for a class 1 misdemeanor?

A.R.S. 13-707 caps jail at 6 months for a class 1 misdemeanor and A.R.S. 13-802 caps the fine at $2,500, before surcharges. A judge may also impose probation and other conditions.

Where can I read the official text of § 28-1381?

The Arizona Legislature publishes it at azleg.gov, in the revision dated 09/20/25. The complete text is reproduced on this page, and every Arizona criminal statute is searchable on our Arizona Criminal Code index.

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