A driver is transporting 900 pounds of Division 4.1 (Flammable Solid) and 200 pounds of Division 5.1 (Oxidizer) in non-bulk packages. Which of the following statements about placarding is TRUE?
- AOnly the FLAMMABLE SOLID placard is required.
- BBoth FLAMMABLE SOLID and OXIDIZER placards are required.
- COnly the OXIDIZER placard is required.
- DNo placards are required for this shipment.
Show answer & explanationAnswer & explanation
Correct answer: B. Both FLAMMABLE SOLID and OXIDIZER placards are required.
Both Division 4.1 (Flammable Solid) and Division 5.1 (Oxidizer) are Table 2 materials. Since the aggregate gross weight of each material exceeds 1,001 pounds (900 + 200 = 1,100 pounds total of Table 2 materials), and each material individually exceeds its 1,001 pound threshold, specific placards for both are required. If the total was over 1,001 pounds but a single material was under 1,001, then a DANGEROUS placard might be applicable, but here both specific placards are needed.
Why the other options are wrong
- A. The oxidizer also meets its placarding threshold.
- C. The flammable solid also meets its placarding threshold.
- D. The total weight of Table 2 materials is 1,100 pounds, exceeding the 1,001 pound threshold, so placards are required.
Table 2 Placarding Threshold
For hazardous materials listed in Table 2 of 49 CFR 172.504(b), specific placards are required if the gross weight of a single class of material in non-bulk packages is 1,001 pounds or more, OR if the aggregate gross weight of all Table 2 materials is 1,001 pounds or more.
- Applies to non-bulk packages.
- Threshold is 1,001 pounds for a single class or aggregate.
- If aggregate is over 1,001 lbs but no single class is, 'DANGEROUS' placard may apply unless specific placard is required for a class.
Memory trick: Two Tables, Two Rules: Table 1 Always, Table 2 When Over a Ton (ish).