Title 18 › Part I— CRIMES › Chapter 44— FIREARMS › § 930
It makes it a crime to knowingly bring or have a firearm or other dangerous weapon inside most federal buildings, or to try to do so. If you do, you can be fined or jailed for up to 1 year. If you bring a weapon intending to use it in a crime, the penalty can be up to 5 years. If someone is killed while committing those crimes or during an attack on a federal building with a weapon, the killer is punished under sections 1111, 1112, 1113, and 1117 of federal law. There are some exceptions. The rule does not apply when a law officer, federal official, or service member is legally doing their job or is otherwise authorized to have a weapon, or when someone is carrying a weapon legally for hunting or other lawful use. Federal court buildings have a separate rule with penalties up to 2 years, but the same exceptions apply. Courts can also make their own rules and punish people for having weapons in court buildings. Signs about these rules must be posted at public entrances, and you cannot be convicted under the main rules if the required sign is missing unless you actually knew about the rule.
Full Legal Text
Crimes and Criminal Procedure — Source: USLM XML via OLRC
Legislative History
Reference
Citation
18 U.S.C. § 930
Title 18 — Crimes and Criminal Procedure
Last Updated
Apr 5, 2026
Release point: 119-73not60