Title 18, Crimes and Criminal ProcedureRelease 119-102

§2339 Harboring or Concealing Terrorists

Title 18 › PART I — CRIMES › CHAPTER 113B — TERRORISM › § 2339

Last updated Aug 21, 2026|Official source

Summary

Hiding or helping someone stay hidden when you know, or have good reason to think, they have done or are about to do very serious crimes — such as destroying aircraft, using biological, chemical, or nuclear weapons, bombing or arson that risks death, attacking ships, destroying energy facilities, sabotaging nuclear sites, committing terrorism across borders, or hijacking planes — is a crime. A person who does this can be fined, put in jail for up to 10 years, or both. The government can charge the helper in any federal court where the original crime happened, or in another federal court if the law allows.

Full Legal Text

Title 18, §2339

Crimes and Criminal Procedure, Source: USLM XML via OLRC

(a)Whoever harbors or conceals any person who he knows, or has reasonable grounds to believe, has committed, or is about to commit, an offense under section 32 (relating to destruction of aircraft or aircraft facilities), section 175 (relating to biological weapons), section 229 (relating to chemical weapons), section 831 (relating to nuclear materials), paragraph (2) or (3) of section 844(f) (relating to arson and bombing of government property risking or causing injury or death), section 1366(a) (relating to the destruction of an energy facility), section 2280 (relating to violence against maritime navigation), section 2332a (relating to weapons of mass destruction), or section 2332b (relating to acts of terrorism transcending national boundaries) of this title, section 236(a) (relating to sabotage of nuclear facilities or fuel) of the Atomic Energy Act of 1954 (42 U.S.C. 2284(a)), or section 46502 (relating to aircraft piracy) of title 49, shall be fined under this title or imprisoned not more than ten years, or both.
(b)A violation of this section may be prosecuted in any Federal judicial district in which the underlying offense was committed, or in any other Federal judicial district as provided by law.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Amendments

2002—Pub. L. 107–273 made technical correction to directory language of Pub. L. 107–56, § 803(a), which enacted this section.

Statutory Notes and Related Subsidiaries

Effective Date

of 2002 Amendment Pub. L. 107–273, div. B, title IV, § 4005(d)(2), Nov. 2, 2002, 116 Stat. 1813, provided that the amendment made by section 4005(d)(2) is effective Oct. 26, 2001.

Reference

Citations & Metadata

Citation

18 U.S.C. § 2339

Title 18, Crimes and Criminal Procedure

Last Updated

Aug 21, 2026

Release point: 119-102