A driver is transporting a shipment that includes 500 pounds of Division 4.1 (Flammable Solids) and 600 pounds of Division 5.1 (Oxidizing Substances). Both are listed in Placarding Table 2. What placarding actions must the driver take?
- APlacard the vehicle with 'FLAMMABLE SOLID' and 'OXIDIZER' placards.
- BPlacard the vehicle with 'FLAMMABLE SOLID' placards only.
- CNo placards are required for this shipment.
- DPlacard the vehicle with 'DANGEROUS' placards.
Show answer & explanationAnswer & explanation
Correct answer: D. Placard the vehicle with 'DANGEROUS' placards.
Both Division 4.1 and Division 5.1 are Table 2 materials. Their combined weight is 500 lbs + 600 lbs = 1,100 lbs. Since this exceeds the 1,001-pound threshold for Table 2 materials, placards are required. When a vehicle contains two or more Table 2 materials that require placards, and no single material is in a quantity of 2,205 lbs or more, the 'DANGEROUS' placard can be used, instead of separate placards for each class.
Why the other options are wrong
- A. While these placards are for the individual materials, the 'DANGEROUS' placard is permitted and generally used for mixed Table 2 loads over 1,001 lbs.
- B. This is incorrect as it only accounts for one material, and the 'DANGEROUS' placard is more appropriate for mixed Table 2 loads.
- C. Placards are required because the aggregate gross weight (1,100 lbs) exceeds the 1,001 lbs threshold for Table 2 materials.
Dangerous Placard Rule
The 'DANGEROUS' placard may be used on a transport vehicle or freight container containing two or more categories of hazardous materials that require placarding under Table 2, but no single category constitutes 2,205 pounds or more.
- Applies to mixed Table 2 materials.
- Total weight must exceed 1,001 pounds.
- No single Table 2 material can exceed 2,205 pounds.
- Simplifies placarding for diverse loads.
Memory trick: Mixed Table 2, over 1000, no single heavy hitter? Dangerous it is!