Title 6 › Chapter 4— TRANSPORTATION SECURITY › Subchapter IV— SURFACE TRANSPORTATION SECURITY › Part A— General Provisions › § 1151
Defines words used in this part so people know what specific terms mean for transportation and security rules. "Appropriate congressional committees" means the Senate Committee on Commerce, Science, and Transportation; the Senate Committee on Homeland Security and Governmental Affairs; the House Committee on Homeland Security; and the House Committee on Transportation and Infrastructure. "Secretary" means the Secretary of Homeland Security. "Department" means the Department of Homeland Security. "Over-the-road bus" means a bus with a raised passenger area above a baggage compartment. "Over-the-road bus frontline employees" means drivers, security staff, dispatchers, maintenance and support workers, ticket agents, terminal workers, and other bus employees the Secretary picks for security training. "Railroad frontline employees" means onboard staff, security, dispatchers, engineers, conductors, maintenance and support workers, bridge tenders, and other railroad employees the Secretary picks for security training. "Railroad" and "railroad carrier" have the meanings given in section 20102 of title 49. "State" means the 50 States, the District of Columbia, Puerto Rico, the Northern Mariana Islands, the Virgin Islands, Guam, American Samoa, and any other U.S. territory or possession. "Terrorism" has the meaning in section 101 of this title. "Transportation" for over-the-road buses means moving passengers or cargo by bus between places in different States or between a State and places outside the State (including outside the United States), and movement inside a State that affects that interstate or international travel. "United States" means the 50 States, the District of Columbia, Puerto Rico, the Northern Mariana Islands, the Virgin Islands, Guam, American Samoa, and any other U.S. territory or possession. "Security-sensitive material" means material that the Secretary, with the Secretary of Transportation and after making rules with public comment, decides poses a serious national security risk when shipped; examples include Class 7 radioactive materials; Division 1.1, 1.2, or 1.3 explosives; materials poisonous or toxic by inhalation (including Division 2.3 gases and Division 6.1 materials); and select agents or toxins regulated by the CDC under part 73 of title 42, Code of Federal Regulations. "Disadvantaged business concerns" means small businesses owned and controlled by socially and economically disadvantaged people as defined in section 124 of title 13, Code of Federal Regulations. "Amtrak" means the National Railroad Passenger Corporation.
Full Legal Text
Domestic Security — Source: USLM XML via OLRC
Legislative History
Reference
Citation
6 U.S.C. § 1151
Title 6 — Domestic Security
Last Updated
Apr 3, 2026
Release point: 119-73not60