Which classes of dangerous goods have divisions?

• A. 1,2,4,5,6
• B. 3,7,8,9
• C. 1,3,5,7
• D. 2,4,6,8

Answer: (A)

Divisions are subcategories within a danger class to capture more specific hazard types and apply precise handling and packaging rules. In this framework, certain classes are split into multiple divisions:

• Explosives (Class 1) are divided into 1.1 through 1.6, reflecting different explosion risks and packaging needs.

• Gases (Class 2) have divisions 2.1, 2.2, and 2.3 for flammable, non-flammable non-toxic, and toxic gases.

• Flammable solids and materials that are easily ignited fall under divisions for Class 4 (4.1, 4.2, 4.3).

• Oxidizing substances and organic peroxides (Class 5) are divided into 5.1 and 5.2.

• Toxic and infectious substances (Class 6) have divisions 6.1 and 6.2.

Other classes listed in typical questions in this context don’t use divisions, so they’re treated as single-category classes. Therefore, the set that includes all classes with divisions is the best answer.