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Each facility that offers for transportation in commerce a threshold quantity of one or more of the hazardous materials delineated in the chart below must develop and adhere to a hazardous materials transportation security plan.
|
Hazard Class/Division |
Type |
Threshold Quantity |
| Division 1.1, 1.2, and 1.3 | Explosives | Any Quantity |
| Division 1.4, 1.5, and 1.6 | Explosives | Any Quantity Requiring Placarding |
| Division 2.1 | Flammable Gases | Large Bulk Quantity |
| Division 2.2 | Nonflammable Gases | Large Bulk Quantity with Subsidiary Hazard of Division 5.1 Oxidizer |
| Division 2.3 | Poisonous Inhalation Hazard (PIH) | Any Quantity |
| Class 3 and Division 4.1 | Desensitized Explosives | 454 kg (1,001 pounds) or Greater in a Single Transport Vehicle or Freight Container |
| Class 3 | Flammable Liquids | Large Bulk Quantity in Packing Group I or II |
| Division 4.2 | Spontaneously Combustible | Large Bulk Quantity in Packing Group I or II |
| Division 4.3 | Dangerous When Wet | Any Quantity |
| Division 5.1 | Oxidizers | Large Bulk Quantity in Packing Groups I and II |
| Division 5.2 | Organic Peroxides | Any Quantity of Organic Peroxide, Type B, Liquid or Solid, Temperature Controlled |
| Division 6.1 | Poisonous Materials Other than PIH | Large Bulk Quantity in Packing Groups I, II, and III |
| Class 8 | Corrosive Materials | Large Bulk Quantity in Packing Group I |
| Class 9 | Miscellaneous Hazardous Materials | Not Subject |
Note that a “large bulk quantity” is any quantity greater than 3,000 kg (6,614 pounds) for solids or 3,000 liters (792 gallons) for liquids and gases in a single packaging such as a cargo tank motor vehicle, portable tank, tank car, or other bulk container.