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ARS 13-3101: Definitions

ARS 13-3101: Definitions

Michael Tamou, Arizona criminal defense attorney

Michael Tamou

Founding Attorney · Criminal Defense

5.0 · Criminal Defense

The complete text of A.R.S. § 13-3101 on definitions, and how this section is used in Arizona criminal cases. It defines terms and procedure rather than creating an offense.

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Michael Tamou, Arizona criminal defense attorney

Michael Tamou

Founding Attorney · Criminal Defense

★★★★★ 5.0 · Criminal 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 § 13-3101 Sets Out

A.R.S. § 13-3101 is the Arizona statute on definitions. It defines terms used throughout the criminal code, so no offense class or sentence attaches to this section on its own.

A. In this chapter, unless the context otherwise requires:

  1. “Deadly weapon” means anything that is designed for lethal use. The term includes a firearm.
  2. “Deface” means to remove, alter or destroy the manufacturer’s serial number.
  3. “Explosive” means any dynamite, nitroglycerine, black powder, or other similar explosive material, including plastic explosives. Explosive does not include ammunition or ammunition components such as primers, percussion caps, smokeless powder, black powder and black powder substitutes used for hand loading purposes.
  4. “Firearm” means any loaded or unloaded handgun, pistol, revolver, rifle, shotgun or other weapon that will expel, is designed to expel or may readily be converted to expel a projectile by the action of an explosive. Firearm does not include a firearm in permanently inoperable condition.
  5. “Improvised explosive device” means a device that incorporates explosives or destructive, lethal, noxious, pyrotechnic or incendiary chemicals and that is designed to destroy, disfigure, terrify or harass.
  6. “Occupied structure” means any building, object, vehicle, watercraft, aircraft or place with sides and a floor that is separately securable from any other structure attached to it, that is used for lodging, business, transportation, recreation or storage and in which one or more human beings either are or are likely to be present or so near as to be in equivalent danger at the time the discharge of a firearm occurs. Occupied structure includes any dwelling house, whether occupied, unoccupied or vacant.
  7. “Prohibited possessor” means any person:
  8. “Prohibited weapon”:
  9. “Trafficking” means to sell, transfer, distribute, dispense or otherwise dispose of a weapon or explosive to another person, or to buy, receive, possess or obtain control of a weapon or explosive, with the intent to sell, transfer, distribute, dispense or otherwise dispose of the weapon or explosive to another person.

Full Text of A.R.S. § 13-3101

A. In this chapter, unless the context otherwise requires:

1. “Deadly weapon” means anything that is designed for lethal use. The term includes a firearm.

2. “Deface” means to remove, alter or destroy the manufacturer’s serial number.

3. “Explosive” means any dynamite, nitroglycerine, black powder, or other similar explosive material, including plastic explosives. Explosive does not include ammunition or ammunition components such as primers, percussion caps, smokeless powder, black powder and black powder substitutes used for hand loading purposes.

4. “Firearm” means any loaded or unloaded handgun, pistol, revolver, rifle, shotgun or other weapon that will expel, is designed to expel or may readily be converted to expel a projectile by the action of an explosive. Firearm does not include a firearm in permanently inoperable condition.

5. “Improvised explosive device” means a device that incorporates explosives or destructive, lethal, noxious, pyrotechnic or incendiary chemicals and that is designed to destroy, disfigure, terrify or harass.

6. “Occupied structure” means any building, object, vehicle, watercraft, aircraft or place with sides and a floor that is separately securable from any other structure attached to it, that is used for lodging, business, transportation, recreation or storage and in which one or more human beings either are or are likely to be present or so near as to be in equivalent danger at the time the discharge of a firearm occurs. Occupied structure includes any dwelling house, whether occupied, unoccupied or vacant.

7. “Prohibited possessor” means any person:

(a) Who has been found to constitute a danger to self or to others or to have a persistent or acute disability or grave disability pursuant to court order pursuant to section 36-540, and whose right to possess a firearm has not been restored pursuant to section 13-925.

(b) Who has been convicted within or without this state of a felony or who has been adjudicated delinquent for a felony and whose civil right to possess or carry a firearm has not been restored.

(c) Who is at the time of possession serving a term of imprisonment in any correctional or detention facility.

(d) Who is at the time of possession serving a term of probation pursuant to a conviction for a domestic violence offense as defined in section 13-3601 or a felony offense, parole, community supervision, work furlough, home arrest or release on any other basis or who is serving a term of probation or parole pursuant to the interstate compact under title 31, chapter 3, article 4.1.

(e) Who is an undocumented alien or a nonimmigrant alien traveling with or without documentation in this state for business or pleasure or who is studying in this state and who maintains a foreign residence abroad. This subdivision does not apply to:

(i) Nonimmigrant aliens who possess a valid hunting license or permit that is lawfully issued by a state in the United States.

(ii) Nonimmigrant aliens who enter the United States to participate in a competitive target shooting event or to display firearms at a sports or hunting trade show that is sponsored by a national, state or local firearms trade organization devoted to the competitive use or other sporting use of firearms.

(iii) Certain diplomats.

(iv) Officials of foreign governments or distinguished foreign visitors who are designated by the United States department of state.

(v) Persons who have received a waiver from the United States attorney general.

(f) Who has been found incompetent pursuant to rule 11, Arizona rules of criminal procedure, and who subsequently has not been found competent.

(g) Who is found guilty except insane.

8. “Prohibited weapon”:

(a) Includes the following:

(i) An item that is a bomb, grenade, rocket having a propellant charge of more than four ounces or mine and that is explosive, incendiary or poison gas.

(ii) A device that is designed, made or adapted to muffle the report of a firearm.

(iii) A firearm that is capable of shooting more than one shot automatically, without manual reloading, by a single function of the trigger.

(iv) A rifle with a barrel length of less than sixteen inches, or shotgun with a barrel length of less than eighteen inches, or any firearm that is made from a rifle or shotgun and that, as modified, has an overall length of less than twenty-six inches.

(v) A breakable container that contains a flammable liquid with a flash point of one hundred fifty degrees Fahrenheit or less and that has a wick or similar device capable of being ignited.

(vi) A chemical or combination of chemicals, compounds or materials, including dry ice, that is possessed or manufactured for the purpose of generating a gas to cause a mechanical failure, rupture or bursting or an explosion or detonation of the chemical or combination of chemicals, compounds or materials.

(vii) An improvised explosive device.

(viii) Any combination of parts or materials that is designed and intended for use in making or converting a device into an item set forth in item (i), (v) or (vii) of this subdivision.

(b) Does not include:

(i) Any fireworks that are imported, distributed or used in compliance with state laws or local ordinances.

(ii) Any propellant, propellant actuated devices or propellant actuated industrial tools that are manufactured, imported or distributed for their intended purposes.

(iii) A device that is commercially manufactured primarily for the purpose of illumination.

9. “Trafficking” means to sell, transfer, distribute, dispense or otherwise dispose of a weapon or explosive to another person, or to buy, receive, possess or obtain control of a weapon or explosive, with the intent to sell, transfer, distribute, dispense or otherwise dispose of the weapon or explosive to another person.

B. The items set forth in subsection A, paragraph 8, subdivision (a), items (i), (ii), (iii) and (iv) of this section do not include any firearms or devices that are possessed, manufactured or transferred in compliance with federal law.

Source: Arizona Revised Statutes § 13-3101, Arizona Legislative Council revision of 09/19/25. Read the official text on azleg.gov. Statutes change; verify the current version before relying on it.

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How § 13-3101 Affects an Arizona Case

§ 13-3101 usually matters because of how it interacts with the charge someone is actually facing. We read it alongside the charging statute, because a definition or a procedural rule frequently decides what the State must prove, what a judge may impose, or what relief is available afterward.

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Common Questions

Frequently Asked Questions

What is A.R.S. § 13-3101?

A.R.S. § 13-3101 is the Arizona statute on definitions. It sets out rules that apply across Arizona criminal cases rather than defining a single offense.

Where can I read the official text of § 13-3101?

The Arizona Legislature publishes it at azleg.gov, in the revision dated 09/19/25. 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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