If a Category B package bears the marks UN3373, BS Cat B, Shipper, Cosignee, and Contact info, would it be Accepted or Rejected?

• A. Accepted
• B. Rejected
• C. Unknown
• D. Not applicable

Answer: (A)

Biological substances transported as Category B are identified and labeled by UN3373, which tells handlers this is a Category B material, not the more dangerous Category A. Along with that UN number, the label should clearly indicate the proper shipping name “Biological substance, Category B.” The additional marks calling out the category and including the shipper and consignee information plus a contact point help ensure traceability and provide a way to reach the sender if anything goes wrong in transit. When these labeling elements are present and the packaging itself meets the required standards, the shipment meets the regulatory labeling requirements and would be accepted.