Select the appropriate job aid to determine the classification assigned to TB Sputum.

• A. CDC biosafety guide
• B. DOT job aid
• C. WHO laboratory manual
• D. IATA job aid

Answer: (B)

TB sputum is an infectious substance, so determining its transport classification must use the guidance that matches the mode of shipment and regulatory body. For ground shipping within the United States, the Department of Transportation (DOT) Hazardous Materials Regulations require using a DOT job aid to determine the correct shipping name, hazard class, and packing requirements. This tool is specifically designed to translate infectious substances into the proper DOT category and packaging rules, ensuring safe and compliant road transport.

The other resources serve different purposes. The CDC biosafety guide focuses on biosafety practices and containment in laboratory settings, not on how substances are classified for transport. The WHO laboratory manual likewise centers on biosafety in the lab. The IATA materials cover air transport classifications and packaging, which applies to air shipments—not ground. So for determining the classification assigned to TB sputum when shipping by road, the DOT job aid is the appropriate resource.