Which of the following hazard classes do NOT use the Packing Group I/II/III system to indicate danger level?

Question

Accepted Answer

Explosives (Class 1) and Gases (Class 2) — these use their own division and classification systems instead of packing groups

Answer

Flammable liquids (Class 3) and corrosives (Class 8) — these are always exempt from packing groups

Answer

All nine hazard classes use packing groups identically, with no exceptions

Answer

Only radioactive materials (Class 7) are exempt from packing groups; every other class uses them