When shipped by air, which option requires only an itemized list of contents and air waybill as documentation?

• A. Category A substance
• B. Category B Substance
• C. UN1845 label
• D. Safety data sheet

Answer: (B)

The main idea is how much paperwork is required depending on the category of infectious substance being shipped by air. Category B infectious substances are handled with the simplest documentation: an itemized list of contents inside the package and the air waybill. No additional shipper’s declaration for dangerous goods is required for these shipments, as long as the packaging and labeling rules are followed.

In contrast, Category A infectious substances pose a higher risk and require more formal documentation, specifically a Shipper’s Declaration for Dangerous Goods, along with appropriate packaging, labeling, and containment.

The other items mentioned aren’t the transport documents needed for air shipments. A UN1845 label is just a hazard label, not a shipping document, and a Safety Data Sheet provides safety information but is not the required transport paperwork.

So the minimal documentation described—an itemized contents list and the air waybill—fits Category B infectious substances.