alienhas the meaning given the term in section 101(a)(3) of the Immigration and Nationality Act.
commercemeans trade or transportation in the jurisdiction of the United States—
commercial motor vehiclehas the meaning given that term by section 31101.
hazardous materialmeans a substance or material the Secretary designates under section 5103(a) of this title.
imminent hazardmeans the existence of a condition relating to hazardous material that presents a substantial likelihood that death, serious illness, severe personal injury, or a substantial endangerment to health, property, or the environment may occur before the reasonably foreseeable completion date of a formal proceeding begun to lessen the risk of that death, illness, injury, or endangerment.
Indian tribehas the same meaning given that term in section 4 of the Indian Self-Determination and Education Assistance Act (25 U.S.C. 450b).1
National Response Teammeans the National Response Team established under the National Contingency Plan established under section 105 of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (42 U.S.C. 9605).
obstructsmeans actions that were known, or reasonably should have been known, to prevent, hinder, or impede an investigation.
out-of-service ordermeans a requirement that an aircraft, vessel, motor vehicle, train, railcar, locomotive, other vehicle, transport unit, transport vehicle, freight container, potable tank, or other package not be moved until specified conditions have been met.
portable trainingmeans live, instructor-led training provided by certified fire service instructors that can be offered in any suitable setting, rather than specific designated facilities.
Secretarymeans the Secretary of Transportation except as otherwise provided.
transportationmeans the movement of property and loading, unloading, or storage incidental to the movement.