46 U.S.C. § 70131: Definitions

In this subchapter:(1) Law enforcement agency.—The term “law enforcement agency” means an agency of a State, a political subdivision of a State, or a Federally recognized tribe that is authorized by law to supervise the prevention, detection, investigation, or prosecution of any violation of criminal law. (2) Security zone.—The term “security zone” means a security zone, established by the Commandant of the Coast Guard or the Commandant’s designee pursuant to section 70051 or section 70116(b), for a vessel carrying especially hazardous cargo when such vessel—(A) enters, or operates within, the internal waters of the United States and the territorial sea of the United States; or (B) transfers such cargo or residue in any port or place, under the jurisdiction of the United States, within the territorial sea of the United States or the internal waters of the United States.