Title 6Domestic SecurityRelease 119-73not60

§1151 Definitions

Title 6 › Chapter 4— TRANSPORTATION SECURITY › Subchapter IV— SURFACE TRANSPORTATION SECURITY › Part A— General Provisions › § 1151

Last updated Apr 3, 2026|Official source

Summary

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

Title 6, §1151

Domestic Security — Source: USLM XML via OLRC

In this subchapter, the following definitions apply:
(1)The term “appropriate congressional committees” means the Committee on Commerce, Science, and Transportation and the Committee on Homeland Security and Governmental Affairs of the Senate and the Committee on Homeland Security and the Committee on Transportation and Infrastructure of the House of Representatives.
(2)The term “Secretary” means the Secretary of Homeland Security.
(3)The term “Department” means the Department of Homeland Security.
(4)The term “over-the-road bus” means a bus characterized by an elevated passenger deck located over a baggage compartment.
(5)In this section,11 So in original. “In this section,” probably should not appear. the term “over-the-road bus frontline employees” means over-the-road bus drivers, security personnel, dispatchers, maintenance and maintenance support personnel, ticket agents, other terminal employees, and other employees of an over-the-road bus operator or terminal owner or operator that the Secretary determines should receive security training under this subchapter.
(6)In this section,1 the term “railroad frontline employees” means security personnel, dispatchers, locomotive engineers, conductors, trainmen, other onboard employees, maintenance and maintenance support personnel, bridge tenders, and any other employees of railroad carriers that the Secretary determines should receive security training under this subchapter.
(7)The term “railroad” has the meaning that term has in section 20102 of title 49.
(8)The term “railroad carrier” has the meaning that term has in section 20102 of title 49.
(9)The term “State” means any one of the 50 States, the District of Columbia, Puerto Rico, the Northern Mariana Islands, the Virgin Islands, Guam, American Samoa, and any other territory or possession of the United States.
(10)The term “terrorism” has the meaning that term has in section 101 of this title.
(11)The term “transportation”, as used with respect to an over-the-road bus, means the movement of passengers or property by an over-the-road bus—
(A)in the jurisdiction of the United States between a place in a State and a place outside the State (including a place outside the United States); or
(B)in a State that affects trade, traffic, and transportation described in subparagraph (A).
(12)The term “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 territory or possession of the United States.
(13)The term “security-sensitive material” means a material, or a group or class of material, in a particular amount and form that the Secretary, in consultation with the Secretary of Transportation, determines, through a rulemaking with opportunity for public comment, poses a significant risk to national security while being transported in commerce due to the potential use of the material in an act of terrorism. In making such a designation, the Secretary shall, at a minimum, consider the following:
(A)Class 7 radioactive materials.
(B)Division 1.1, 1.2, or 1.3 explosives.
(C)Materials poisonous or toxic by inhalation, including Division 2.3 gases and Division 6.1 materials.
(D)A select agent or toxin regulated by the Centers for Disease Control and Prevention under part 73 of title 42, Code of Federal Regulations.
(14)The term “disadvantaged business concerns” means small businesses that are owned and controlled by socially and economically disadvantaged individuals as defined in section 124,22 So in original. Probably should be “part 124,”. of title 13, Code of Federal Regulations.
(15)The term “Amtrak” means the National Railroad Passenger Corporation.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

References in Text

This subchapter, referred to in text, was in the original “this title”, meaning title XV of Pub. L. 110–53, Aug. 3, 2007, 121 Stat. 422, which enacted this subchapter, amended section 1992 of Title 18, Crimes and Criminal Procedure, and section 114, 5103a, 14504, 20106, 20109, 24301, 28101, and 31105 of Title 49, Transportation, enacted provisions set out as notes under section 13908 and 14504 of Title 49, and amended provisions set out as a note under section 14504 of Title 49. For complete classification of title XV to the Code, see Tables.

Reference

Citations & Metadata

Citation

6 U.S.C. § 1151

Title 6Domestic Security

Last Updated

Apr 3, 2026

Release point: 119-73not60