Which hazardous item is specifically permitted as an exception to the general restriction on explosives in a bus’s passenger space?
Correct answer: B – Properly prepared small-arms ammunition
Federal passenger-carrying vehicle regulations specifically except small-arms ammunition from the general prohibition on Class 1 explosive material in the passenger space. The ammunition must still comply with applicable hazardous-material packaging and transportation requirements. Poison gas, gasoline carried by passengers, and labeled radioactive materials are not covered by this exception.
Source: 49 CFR § 177.870(a)–(c) – Regulations for passenger carrying vehicles

