On an air waybill, which field is explicitly listed as part of DG-specific data?

• A. Shipper's bank routing number.
• B. Airport name.
• C. UN number.
• D. DG-related annotations.

Answer: (D)

The key idea here is that the air waybill includes a dedicated place for notes and markings that pertain specifically to dangerous goods. The field that is explicitly reserved for DG-specific information is the DG-related annotations. This space is used to carry the special notes, instructions, or regulatory details that accompany a dangerous goods shipment—things like any additional handling requirements, restrictions, or cross-references to the Shipper’s Declaration. These annotations ensure everyone along the chain sees the DG status and knows exactly what extra precautions or procedures are required.

Other options don’t fit as well. A bank routing number is unrelated to dangerous goods and pertains to financial details. The airport name is a general data point about where the shipment is moving from or through, not specific DG guidance. While the UN number identifies the dangerous substance, it’s a standard identifier rather than a field meant for the DG-specific notes that must travel with the shipment.