Under the designated dangerous cargo permit requirements, a facility must obtain this permit when handling which class of explosives?

• A. When handling 1.4 explosives.
• B. When handling 1.2 explosives.
• C. When handling 1.1 and 1.2 explosives.
• D. For all hazardous materials.

Answer: (C)

Designated dangerous cargo permits are needed for handling explosives that have significant blast hazards. In Class 1, divisions describe the level of danger: division 1.1 involves mass explosion hazards, and division 1.2 involves a projection hazard. Because these two divisions carry the potential for widespread harm, facilities that handle both 1.1 and 1.2 explosives must have the designated dangerous cargo permit. In contrast, 1.4 explosives are considered minor hazards with limited blast effects, so they typically don’t require this permit, and requiring a permit for all hazardous materials would be overly broad. So the permit applies specifically when handling both 1.1 and 1.2 explosives.