Code of Federal Regulations Title 49. Transportation § 49.107.601 Applicability

(1) A highway route-controlled quantity of a Class 7 (radioactive) material, as defined in § 173.403 of this chapter;

(2) More than 25 kg (55 pounds) of a Division 1.1, 1.2, or 1.3 (explosive) material (see § 173.50 of this chapter) in a motor vehicle, rail car or freight container;

(3) More than one L (1.06 quarts) per package of a material extremely toxic by inhalation (i.e., “material poisonous by inhalation,” as defined in § 171.8 of this chapter, that meets the criteria for “hazard zone A,” as specified in § 173.116(a) or § 173.133(a) of this chapter);

(4) A shipment of a quantity of hazardous materials in a bulk packaging (see § 171.8 of this chapter) having a capacity equal to or greater than 13,248 L (3,500 gallons) for liquids or gases or more than 13.24 cubic meters (468 cubic feet) for solids;

(5) A shipment in other than a bulk packaging of 2,268 kg (5,000 pounds) gross weight or more of one class of hazardous materials for which placarding of a vehicle, rail car, or freight container is required for that class, under the provisions of subpart F of part 172 of this chapter;  or

(6) Except as provided in paragraph (b) of this section, a quantity of hazardous material that requires placarding, under provisions of subpart F of part 172 of this chapter.