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CDL · General

What does the term 'packing group' indicate for a hazardous material?

Correct answer

The degree of danger the material presents: Packing Group I (great danger), II (medium danger), III (minor danger)

  1. A The size of the box
  2. B The degree of danger the material presents: Packing Group I (great danger), II (medium danger), III (minor danger)
  3. C The shipping company
  4. D The delivery time

Why this is the answer

The PACKING GROUP indicates the DEGREE OF DANGER a hazardous material presents within its hazard class: PACKING GROUP I = GREAT danger (highest hazard); PACKING GROUP II = MEDIUM danger; PACKING GROUP III = MINOR danger (lowest of the three). CDL hazmat. The packing group affects packaging requirements (more dangerous materials need more robust packaging) and may affect other requirements. It appears on shipping papers (often as Roman numerals). Some materials (like certain explosives, gases, and radioactive materials) don't use packing groups. Understanding the packing group helps assess the relative hazard and ensures proper packaging. Knowing the packing group system (I = great, II = medium, III = minor danger) is commonly tested hazmat documentation knowledge.
Source: FMCSA CDL Manual — Hazmat, Packing Groups

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