Passenger · Loading and Trip Start

For the hazardous materials other than Class 1 explosives that a passenger-carrying vehicle is permitted to carry, what quantity ceilings does federal regulation set?

1.No more than 45 kg (99 pounds) gross weight of any one class, and no more than 225 kg (496 pounds) aggregate for all classes togetherCorrect answer

2.No more than 45 kg (99 pounds) aggregate total across all classes combined, with no separate per-class limit applied at all

3.No more than 225 kg (496 pounds) of any single one class, with no aggregate limit placed on the combined total of all classes

4.There is no quantity ceiling of any kind at all, only a requirement that each package be properly labeled and securely fastened in place

Explanation

The ceiling is 45 kg (99 pounds) gross weight for any one class of hazardous material other than Class 1 explosive materials, and 225 kg (496 pounds) aggregate for all such materials together. 49 CFR 177.870(e) states both figures, and the reason there are two is that a vehicle can sit within the per-class figure on several materials at once and still carry a dangerous total, so the aggregate cap closes that gap. The wrong options each drop one of the two limits or deny that any limit exists, and the third also swaps the figures by applying the larger aggregate number to a single class. Note that these are the codified numbers: some guidance rounds them to 100 and 500 pounds, but the regulation's own figures are 99 and 496 pounds, converted from the metric limits it sets.

Source: 49 CFR 177.870(e)

Drill Loading and Trip Start questions

For the hazardous materials other than Class 1 explosives that a passenger-carrying vehicle is permitted to carry, what quantity ceilings does federal regulation set?

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