A driver is transporting hazardous materials and needs to identify the hazard class of a substance. Where is the most accurate and primary location to find the hazard class listed on a shipping paper?
- AIn the emergency response information section.
- BAfter the UN/NA identification number.
- CBefore the proper shipping name.
- DAfter the proper shipping name.
Show answer & explanationAnswer & explanation
Correct answer: D. After the proper shipping name.
According to hazardous materials regulations (49 CFR 172.202), the hazard class or division must be entered on the shipping paper immediately following the proper shipping name, or it may be entered immediately following the basic description (which includes UN/NA ID, proper shipping name, hazard class, and packing group). The sequence UN/NA ID, Proper Shipping Name, Hazard Class, Packing Group is the most common and preferred format, making 'after the proper shipping name' the most direct answer.
Why the other options are wrong
- A. Incorrect. The emergency response information section contains guidance for incidents, not the primary listing of the hazard class in the basic description.
- B. Incorrect. While it follows the UN/NA ID in the basic description, it specifically follows the proper shipping name within that sequence.
- C. Incorrect. The hazard class does not come before the proper shipping name.
Shipping Paper Entries: Hazard Class Location
On a hazardous materials shipping paper, the hazard class or division is a mandatory entry and must appear in a specific sequence within the basic description.
- The basic description includes: UN/NA ID, Proper Shipping Name, Hazard Class, Packing Group.
- The hazard class is typically found immediately after the Proper Shipping Name.
- This sequence is critical for quick identification of hazards.
Memory trick: UN-PSN-HC-PG: Universal Names Help People Go!