A person may not possess a regulated firearm if the person: Is a habitual drunkard; Is addicted to or a habitual user of a controlled dangerous substance; Is a fugitive from justice; Has been convicted of: A crime of violence; Any violation classified as a felony in this State; Any violation classified as a misdemeanor in this State that carries a statutory penalty of more than 2 years; or Any violation classified as a common law offense where the person received a term of imprisonment of more than 2 years; or Has received probation before judgment for a crime of violence, except for assault in the second degree or a case in which a person received probation before judgment for a disqualifying crime and that crime was expunged under Criminal Procedure Article, Title 10, Subtitle 1, Annotated Code of Maryland; Has received probation before judgment for a domestically related crime, as defined in Criminal Procedure Article, §6-233, Annotated Code of Maryland, except when the crime was expunged under Criminal Procedure Article, Title 10, Subtitle 1, Annotated Code of Maryland; Has been found not criminally responsible under Criminal Procedure Article, §3-110, Annotated Code of Maryland; Has been found incompetent to stand trial under Criminal Procedure Article, §3-106, Annotated Code of Maryland; Has a mental health disorder and a history of violent behavior; Has been voluntarily admitted for more than 30 consecutive days to a mental health facility; Has been involuntarily admitted to a mental health facility; Is under the protection of a guardian appointed by a court under Estates of Trusts Article, §13-201(c) or 13-705, Annotated Code of Maryland, unless the appointment of the guardian was solely a result of a physical disability; Is a respondent against whom a current non ex parte civil protection order has been entered under Family Law Article, §4-506, Annotated Code of Maryland; Is a respondent against whom an order for protection, as defined in Family Law Article, §4-508.1, Annotated Code of Maryland, has been issued by a court of another state or a Native American tribe and is in effect; Is younger than 30 years old and has been adjudicated delinquent by a juvenile court for committing an act that would be: A crime of violence if committed by an adult; A violation classified as a felony in this State if committed by an adult; or A violation classified as a misdemeanor in this State that carries a statutory penalty of more than two years if committed by an adult; or Is prohibited from otherwise possessing a firearm by federal or State law. A person younger than 21 years old may not possess a regulated firearm unless the person is not otherwise prohibited from possessing a regulated firearm and is: A member of the armed forces of the United States or the National Guard and is performing official duties; Required to possess a regulated firearm for employment purposes and holds a valid permit under Public Safety Article, Title 5, Subtitle 3, Annotated Code of Maryland; Temporarily transferring or possessing a regulated firearm or ammunition and is: Under the supervision of another who is at least 21 years old or older and who is not prohibited by federal or State law from possessing a firearm; and Acting with the permission of the parent or legal guardian of the person; Temporarily transferring or possessing a regulated firearm or ammunition and is: Participating in marksmanship training of a recognized organization; and Under the supervision of a qualified instructor; or Possessing the firearm for self-defense or the defense of others against a trespasser into the person’s residence or a residence in which the person is an invited guest. This section does not apply to a respondent transporting a regulated firearm if the respondent is carrying a civil protection order requiring the surrender of the regulated firearm and: The regulated firearm is unloaded; The respondent has notified the law enforcement unit, barracks, or station that the regulated firearm is being transported in accordance with the civil protection order; and The respondent transports the regulated firearm directly to the law enforcement unit, barracks, or station. This section supersedes any restrictions that a local jurisdiction in the State imposes on the possession by a private party of a regulated firearm, and the State preempts the right of any local jurisdiction to regulate the possession of a regulated firearm.