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CDL · Loading and Trip Start

What hazardous materials may a bus carry, and what is prohibited?

Correct answer

Limited amounts of certain hazardous materials are allowed, but a bus may never carry items such as Division 2.3 poison gas, liquid Class 6 poison, explosives in the space occupied by people, or more than the small allowable quantities set by the rules

  1. A Any hazardous material in any quantity
  2. B Limited amounts of certain hazardous materials are allowed, but a bus may never carry items such as Division 2.3 poison gas, liquid Class 6 poison, explosives in the space occupied by people, or more than the small allowable quantities set by the rules
  3. C Buses can carry unlimited explosives if labeled
  4. D There are no restrictions on a chartered bus

Why this is the answer

Buses may carry only small, specified amounts of certain hazardous materials, and several categories are forbidden entirely. A bus must never transport Division 2.3 poison gas or liquid Class 6 poison, explosives (other than very small permitted amounts), tear gas, irritating material, or most radioactive materials in the space occupied by passengers. Even allowed hazardous materials are limited in quantity and may not be carried in the passenger area. The driver is responsible for refusing baggage or cargo that violates these rules, because a hazmat incident on a crowded bus would be catastrophic.
Source: FMCSA CDL Manual 4.2.2 Hazmat on Buses

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