In the classification process, what are the two essential data points you determine first?

In the classification process, what are the two essential data points you determine first?

• A. The PSN and SPs
• B. The hazard class/division and the UN number
• C. The packaging instructions and the exemption type
• D. The shipper's name and consignee

Answer: (B)

The first step in classifying dangerous goods is to establish two key data points: the hazard class/division and the UN number. The hazard class/division tells you what kind of hazard you’re dealing with and any subsidiary risks, while the UN number is a four-digit code that uniquely identifies the specific substance or article. Together, these two pieces of information point you to the correct entry in the Dangerous Goods List, which then guides the proper shipping name, the applicable packing instructions, and any special provisions. Other details like packaging instructions, exemptions, or shipper/consignee information are determined after you’ve pinned down these two identifiers, because they rely on the exact material identity and its hazard.

The first step in classifying dangerous goods is to establish two key data points: the hazard class/division and the UN number. The hazard class/division tells you what kind of hazard you’re dealing with and any subsidiary risks, while the UN number is a four-digit code that uniquely identifies the specific substance or article. Together, these two pieces of information point you to the correct entry in the Dangerous Goods List, which then guides the proper shipping name, the applicable packing instructions, and any special provisions. Other details like packaging instructions, exemptions, or shipper/consignee information are determined after you’ve pinned down these two identifiers, because they rely on the exact material identity and its hazard.