18 U.S.C. § 921 — Definitions

**(a)** As used in this chapter— (1) The term “person” and the term “whoever” include any individual, corporation, company, association, firm, partnership, society, or joint stock company. (2) The term “interstate or foreign commerce” includes commerce between any place in a State and any place outside of that State, or within any possession of the United States (not including the Canal Zone) or the District of Columbia, but such term does not include commerce between places within the same State but through any place outside of that State. The term “State” includes the District of Columbia, the Commonwealth of Puerto Rico, and the possessions of the United States (not including the Canal Zone). (3) The term “firearm” means (A) any weapon (including a starter gun) which will or is designed to or may readily be converted to expel a projectile by the action of an explosive; (B) the frame or receiver of any such weapon; (C) any firearm muffler or firearm silencer; or (D) any destructive device. Such term does not include an antique firearm. (4) The term “destructive device” means— (A) any explosive, incendiary, or poison gas— (i) bomb, (ii) grenade, (iii) rocket having a propellant charge of more than four ounces, (iv) missile having an explosive or incendiary charge of more than one-quarter ounce, (v) mine, or (vi) device similar to any of the devices described in the preceding clauses; (B) any type of weapon (other than a shotgun or a shotgun shell which the Attorney General finds is generally recognized as particularly suitable for sporting purposes) by whatever name known which will, or which may be readily converted to, expel a projectile by the action of an explosive or other propellant, and which has any barrel with a bore of more than one-half inch in diameter; and (C) any combination of parts either designed or intended for use in converting any device into any destructive device described in subparagraph (A) or (B) and from which a destructive device may be readily assembled. The term “destructive device” shall not include any device which is neither designed nor redesigned for use as a weapon; any device, although originally designed for use as a weapon, which is redesigned for use as a signaling, pyrotechnic, line throwing, safety, or similar device; surplus ordnance sold, loaned, or given by the Secretary of the Army pursuant to the provisions of section 7684(2), 7685, or 7686 of title 10; or any other device which the Attorney General finds is not likely to be used as a weapon, is an antique, or is a rifle which the owner intends to use solely for sporting, recreational or cultural purposes. (5) The term “shotgun” means a weapon designed or redesigned, made or remade, and intended to be fired from the shoulder and designed or redesigned and made or remade to use the energy of an explosive to fire through a smooth bore either a number of ball shot or a single projectile for each single pull of the trigger. (6) The term “short-barreled shotgun” means a shotgun having one or more barrels less than eighteen inches in length and any weapon made from a shotgun (whether by alteration, modification or otherwise) if such a weapon as modified has an overall length of less than twenty-six inches. (7) The term “rifle” means a weapon designed or redesigned, made or remade, and intended to be fired from the shoulder and designed or redesigned and made or remade to use the energy of an explosive to fire only a single projectile through a rifled bore for each single pull of the trigger. (8) The term “short-barreled rifle” means a rifle having one or more barrels less than sixteen inches in length and any weapon made from a rifle (whether by alteration, modification, or otherwise) if such weapon, as modified, has an overall length of less than twenty-six inches. (9) The term “importer” means any person engaged in the business of importing or bringing firearms or ammunition into the United States for purposes of sale or distribution; and the term “licensed importer” means any such person licensed under the provisions of this chapter. (10) The term “manufacturer” means any person engaged in the business of manufacturing firearms or ammunition for purposes of sale or distribution; and the term “licensed manufacturer” means any such person licensed under the provisions of this chapter. (11) The term “dealer” means (A) any person engaged in the business of selling firearms at wholesale or retail, (B) any person engaged in the business of repairing firearms or of making or fitting special barrels, stocks, or trigger mechanisms to firearms, or (C) any person who is a pawnbroker. The term “licensed dealer” means any dealer who is licensed under the provisions of this chapter. (12) The term “pawnbroker” means any person whose business or occupation includes the taking or receiving, by way of pledge or pawn, of any firearm as security for the payment or repayment of money. (13) The term “collector” means any person who acquires, holds, or disposes of firearms as curios or relics, as the Attorney General shall by regulation define, and the term “licensed collector” means any such person licensed under the provisions of this chapter. (14) The term “indictment” includes an indictment or information in any court under which a crime punishable by imprisonment for a term exceeding one year may be prosecuted. (15) The term “fugitive from justice” means any person who has fled from any State to avoid prosecution for a crime or to avoid giving testimony in any criminal proceeding. (16) The term “antique firearm” means— (A) any firearm (including any firearm with a matchlock, flintlock, percussion cap, or similar type of ignition system) manufactured in or before 1898; or (B) any replica of any firearm described in subparagraph (A) if such replica— (i) is not designed or redesigned for using rimfire or conventional centerfire fixed ammunition, or (ii) uses rimfire or conventional centerfire fixed ammunition which is no longer manufactured in the United States and which is not readily available in the ordinary channels of commercial trade; or (C) any muzzle loading rifle, muzzle loading shotgun, or muzzle loading pistol, which is designed to use black powder, or a black powder substitute, and which cannot use fixed ammunition. For purposes of this subparagraph, the term “antique firearm” shall not include any weapon which incorporates a firearm frame or receiver, any firearm which is converted into a muzzle loading weapon, or any muzzle loading weapon which can be readily converted to fire fixed ammunition by replacing the barrel, bolt, breechblock, or any combination thereof. (17) (A) The term “ammunition” means ammunition or cartridge cases, primers, bullets, or propellent powder designed for use in any firearm. (B) The term “armor piercing ammunition” means— (i) a projectile or projectile core which may be used in a handgun and which is constructed entirely (excluding the presence of traces of other substances) from one or a combination of tungsten alloys, steel, iron, brass, bronze, beryllium copper, or depleted uranium; or (ii) a full jacketed projectile larger than .22 caliber designed and intended for use in a handgun and whose jacket has a weight of more than 25 percent of the total weight of the projectile. (C) The term “armor piercing ammunition” does not include shotgun shot required by Federal or State environmental or game regulations for hunting purposes, a frangible projectile designed for target shooting, a projectile which the Attorney General finds is primarily intended to be used for sporting purposes, or any other projectile or projectile core which the Attorney General finds is intended to be used for industrial purposes, including a charge used in an oil and gas well perforating device. (18) The term “Attorney General” means the Attorney General of the United States 11 So in original. Probably should be followed by a period. (19) The term “published ordinance” means a published law of any political subdivision of a State which the Attorney General determines to be relevant to the enforcement of this chapter and which is contained on a list compiled by the Attorney General, which list shall be published in the Federal Register, revised annually, and furnished to each licensee under this chapter. (20) The term “crime punishable by imprisonment for a term exceeding one year” does not include— (A) any Federal or State offenses pertaining to antitrust violations, unfair trade practices, restraints of trade, or other similar offenses relating to the regulation of business practices, or (B) any State offense classified by the laws of the State as a misdemeanor and punishable by a term of imprisonment of two years or less. What constitutes a conviction of such a crime shall be determined in accordance with the law of the jurisdiction in which the proceedings were held. Any conviction which has been expunged, or set aside or for which a person has been pardoned or has had civil rights restored shall not be considered a conviction for purposes of this chapter, unless such pardon, expungement, or restoration of civil rights expressly provides that the person may not ship, transport, possess, or receive firearms. (21) The term “engaged in the business” means— (A) as applied to a manufacturer of firearms, a person who devotes time, attention, and labor to manufacturing firearms as a regular course of trade or business with the principal objective of livelihood and profit through the sale or distribution of the firearms manufactured; (B) as applied to a manufacturer of ammunition, a person who devotes time, attention, and labor to manufacturing ammunition as a regular course of trade or business with the principal objective of livelihood and profit through the sale or distribution of the ammunition manufactured; (C) as applied to a dealer in firearms, as defined in section 921(a)(11)(A), a person who devotes time, attention, and labor to dealing in firearms as a regular course of trade or business to predominantly earn a profit through the repetitive purchase and resale of firearms, but such term shall not include a person who makes occasional sales, exchanges, or purchases of firearms for the enhancement of a personal collection or for a hobby, or who sells all or part of his personal collection of firearms; (D) as applied to a dealer in firearms, as defined in section 921(a)(11)(B), a person who devotes time, attention, and labor to engaging in such activity as a regular course of trade or business with the principal objective of livelihood and profit, but such term shall not include a person who makes occasional repairs of firearms, or who occasionally fits special barrels, stocks, or trigger mechanisms to firearms; (E) as applied to an importer of firearms, a person who devotes time, attention, and labor to importing firearms as a regular course of trade or business with the principal objective of livelihood and profit through the sale or distribution of the firearms imported; and (F) as applied to an importer of ammunition, a person who devotes time, attention, and labor to importing ammunition as a regular course of trade or business with the principal objective of livelihood and profit through the sale or distribution of the ammunition imported. (22) The term “to predominantly earn a profit” means that the intent underlying the sale or disposition of firearms is predominantly one of obtaining pecuniary gain, as opposed to other intents, such as improving or liquidating a personal firearms collection: Provided, That proof of profit shall not be required as to a person who engages in the regular and repetitive purchase and disposition of firearms for criminal purposes or terrorism. For purposes of this paragraph, the term “terrorism” means activity, directed against United States persons, which— (A) is committed by an individual who is not a national or permanent resident alien of the United States; (B) involves violent acts or acts dangerous to human life which would be a criminal violation if committed within the jurisdiction of the United States; and (C) is intended— (i) to intimidate or coerce a civilian population; (ii) to influence the policy of a government by intimidation or coercion; or (iii) to affect the conduct of a government by assassination or kidnapping. (23) The term “with the principal objective of livelihood and profit” means that the intent underlying the sale or disposition of firearms is predominantly one of obtaining livelihood and pecuniary gain, as opposed to other intents, such as improving or liquidating a personal firearms collection: Provided, That proof of profit shall not be required as to a person who engages in the regular and repetitive purchase and disposition of firearms for criminal purposes or terrorism. For purposes of this paragraph, the term “terrorism” means activity, directed against United States persons, which— (A) is committed by an individual who is not a national or permanent resident alien of the United States; (B) involves violent acts or acts dangerous to human life which would be a criminal violation if committed within the jurisdiction of the United States; and (C) is intended— (i) to intimidate or coerce a civilian population; (ii) to influence the policy of a government by intimidation or coercion; or (iii) to affect the conduct of a government by assassination or kidnapping. (24) The term “machinegun” has the meaning given such term in section 5845(b) of the National Firearms Act ([26 U.S.C. 5845(b)](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title26-section5845/b&num=0&edition=prelim)). (25) The terms “firearm silencer” and “firearm muffler” mean any device for silencing, muffling, or diminishing the report of a portable firearm, including any combination of parts, designed or redesigned, and intended for use in assembling or fabricating a firearm silencer or firearm muffler, and any part intended only for use in such assembly or fabrication. (26) The term “school zone” means— (A) in, or on the grounds of, a public, parochial or private school; or (B) within a distance of 1,000 feet from the grounds of a public, parochial or private school. (27) The term “school” means a school which provides elementary or secondary education, as determined under State law. (28) The term “motor vehicle” has the meaning given such term in [section 13102 of title 49](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title49-section13102&num=0&edition=prelim), United States Code. (29) The term “semiautomatic rifle” means any repeating rifle which utilizes a portion of the energy of a firing cartridge to extract the fired cartridge case and chamber the next round, and which requires a separate pull of the trigger to fire each cartridge. (30) The term “handgun” means— (A) a firearm which has a short stock and is designed to be held and fired by the use of a single hand; and (B) any combination of parts from which a firearm described in subparagraph (A) can be assembled. (31) Repealed. Pub. L. 103–322, title XI, § 110105(2), Sept. 13, 1994, 108 Stat. 2000.] (32) The term “intimate partner” means, with respect to a person, the spouse of the person, a former spouse of the person, an individual who is a parent of a child of the person, and an individual who cohabitates or has cohabited with the person. (33) (A) Except as provided in subparagraphs (B) and (C), the term “misdemeanor crime of domestic violence” means an offense that— (i) is a misdemeanor under Federal, State, Tribal, or local law; and (ii) has, as an element, the use or attempted use of physical force, or the threatened use of a deadly weapon, committed by a current or former spouse, parent, or guardian of the victim, by a person with whom the victim shares a child in common, by a person who is cohabiting with or has cohabited with the victim as a spouse, parent, or guardian, by a person similarly situated to a spouse, parent, or guardian of the victim, or by a person who has a current or recent former dating relationship with the victim. (B) (i) A person shall not be considered to have been convicted of such an offense for purposes of this chapter, unless— (I) the person was represented by counsel in the case, or knowingly and intelligently waived the right to counsel in the case; and (II) in the case of a prosecution for an offense described in this paragraph for which a person was entitled to a jury trial in the jurisdiction in which the case was tried, either (aa) the case was tried by a jury, or (bb) the person knowingly and intelligently waived the right to have the case tried by a jury, by guilty plea or otherwise. (ii) A person shall not be considered to have been convicted of such an offense for purposes of this chapter if the conviction has been expunged or set aside, or is an offense for which the person has been pardoned or has had civil rights restored (if the law of the applicable jurisdiction provides for the loss of civil rights under such an offense) unless the pardon, expungement, or restoration of civil rights expressly provides that the person may not ship, transport, possess, or receive firearms. (C) A person shall not be considered to have been convicted of a misdemeanor crime of domestic violence against an individual in a dating relationship for purposes of this chapter if the conviction has been expunged or set aside, or is an offense for which the person has been pardoned or has had firearm rights restored unless the expungement, pardon, or restoration of rights expressly provides that the person may not ship, transport, possess, or receive firearms: Provided, That, in the case of a person who has not more than 1 conviction of a misdemeanor crime of domestic violence against an individual in a dating relationship, and is not otherwise prohibited under this chapter, the person shall not be disqualified from shipping, transport, possession, receipt, or purchase of a firearm under this chapter if 5 years have elapsed from the later of the judgment of conviction or the completion of the person’s custodial or supervisory sentence, if any, and the person has not subsequently been convicted of another such offense, a misdemeanor under Federal, State, Tribal, or local law which has, as an element, the use or attempted use of physical force, or the threatened use of a deadly weapon, or any other offense that would disqualify the person under section 922(g). The national instant criminal background check system established under section 103 of the Brady Handgun Violence Prevention Act ([34 U.S.C. 40901](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title34-section40901&num=0&edition=prelim)) shall be updated to reflect the status of the person. Restoration under this subparagraph is not available for a current or former spouse, parent, or guardian of the victim, a person with whom the victim shares a child in common, a person who is cohabiting with or has cohabited with the victim as a spouse, parent, or guardian, or a person similarly situated to a spouse, parent, or guardian of the victim. (34) The term “secure gun storage or safety device” means— (A) a device that, when installed on a firearm, is designed to prevent the firearm from being operated without first deactivating the device; (B) a device incorporated into the design of the firearm that is designed to prevent the operation of the firearm by anyone not having access to the device; or (C) a safe, gun safe, gun case, lock box, or other device that is designed to be or can be used to store a firearm and that is designed to be unlocked only by means of a key, a combination, or other similar means. (35) The term “body armor” means any product sold or offered for sale, in interstate or foreign commerce, as personal protective body covering intended to protect against gunfire, regardless of whether the product is to be worn alone or is sold as a complement to another product or garment. (36) The term “local law enforcement authority” means a bureau, office, department or other authority of a State or local government or Tribe that has jurisdiction to investigate a violation or potential violation of, or enforce, a State, local, or Tribal law. (37) (A) The term “dating relationship” means a relationship between individuals who have or have recently had a continuing serious relationship of a romantic or intimate nature. (B) Whether a relationship constitutes a dating relationship under subparagraph (A) shall be determined based on consideration of— (i) the length of the relationship; (ii) the nature of the relationship; and (iii) the frequency and type of interaction between the individuals involved in the relationship. (C) A casual acquaintanceship or ordinary fraternization in a business or social context does not constitute a dating relationship under subparagraph (A). (38) The term “verified electronic notification”, with respect to a communication to a chief law enforcement officer required under section 922(c)(2), means a digital communication— (A) sent to the electronic communication address that the chief law enforcement officer voluntarily designates for the purpose of receiving those communications; and (B) that includes a method for verifying— (i) the receipt of the communication; and (ii) the electronic communication address to which the communication is sent. **(b)** For the purposes of this chapter, a member of the Armed Forces on active duty is a resident of the State in which his permanent duty station is located.