Which configuration of hazardous materials is permissible on a bus?

Which configuration of hazardous materials is permissible on a bus?

• A. 100 pounds of Class A and 100 pounds of Class B
• B. 500 pounds of Class A only
• C. 450 pounds Class A and 60 pounds Class B
• D. 200 pounds total with no per-class limit

Answer: (A)

The main rule to understand is that hazmat on a bus is allowed only in very small quantities, with limits by class and a total limit. You may carry up to 100 pounds of any one hazmat class and up to a total of 200 pounds of hazardous materials on a passenger-carrying vehicle. Mixing classes is allowed as long as you stay within those caps. The configuration with 100 pounds of Class A and 100 pounds of Class B fits both limits: it respects the 100-pound per-class cap and the 200-pound total limit, so it is permissible. The other options break the rules by exceeding the per-class limit (500 pounds of Class A or 450 pounds of Class A) or by claiming a 200-pound total without ensuring a per-class limit is not exceeded.

The main rule to understand is that hazmat on a bus is allowed only in very small quantities, with limits by class and a total limit. You may carry up to 100 pounds of any one hazmat class and up to a total of 200 pounds of hazardous materials on a passenger-carrying vehicle. Mixing classes is allowed as long as you stay within those caps.

The configuration with 100 pounds of Class A and 100 pounds of Class B fits both limits: it respects the 100-pound per-class cap and the 200-pound total limit, so it is permissible. The other options break the rules by exceeding the per-class limit (500 pounds of Class A or 450 pounds of Class A) or by claiming a 200-pound total without ensuring a per-class limit is not exceeded.