Title 18 › Part PART I— - CRIMES › Chapter CHAPTER 113B— - TERRORISM › § 2339B
It is a crime to knowingly give material help or resources to a foreign group that the U.S. has officially labeled a terrorist organization. A person who does this, or tries or plans to do it, can be fined or sent to prison for up to 20 years. If someone dies because of the help, the person can be imprisoned for any number of years or for life. Banks that find they hold money that a terrorist group or its agent has an interest in must keep control of those funds and tell the Treasury Secretary as the Secretary’s rules require, unless the Secretary allows otherwise. A bank that knowingly fails to do this can be fined the greater of $50,000 per violation or twice the amount it was supposed to hold. The Attorney General can ask a federal court to stop conduct that appears to break these rules. The law applies to U.S. citizens, lawful permanent residents, stateless people who live in the U.S., crimes that happen in the U.S. or affect U.S. commerce, people brought into the U.S. after committing the conduct, and to people who help or conspire with someone under those rules. The Attorney General handles investigations and works with the Treasury Secretary on bank cases. In civil cases, courts may let the government redact or summarize classified information and use special procedures to protect secrets, and the government may appeal some orders quickly (pretrial appeals by 14 days; appeals during trial with argument and decision within 4 days). Short definitions: “classified information”—as that term is used in the Classified Information Procedures Act; “financial institution”—as in federal law about banks; “funds”—money and other negotiable items and their electronic forms; “material support or resources”—as defined elsewhere and includes things like training and expert advice; “Secretary”—the Treasury Secretary; “terrorist organization”—an organization officially designated under the Immigration and Nationality Act. A person cannot be prosecuted for providing “personnel” unless they knowingly gave one or more people to work under the group’s direction or to manage it; people who act on their own to support the group are not treated as working under its control. The law does not limit First Amendment rights. The Secretary of State, with the Attorney General’s agreement, may approve certain support or resources, but may not approve anything that could be used to carry out terrorist activity.
Full Legal Text
Crimes and Criminal Procedure — Source: USLM XML via OLRC
Legislative History
Reference
Citation
18 U.S.C. § 2339B
Title 18 — Crimes and Criminal Procedure
Last Updated
Apr 6, 2026
Release point: 119-73