Select the appropriate option for additional labels and markings to be included for cold packs on the outer packaging.

• A. UN3373 Biological Substance, Category B label
• B. BIOHAZARD symbol labels
• C. Class 3 label for flammable liquids
• D. None of the above

Answer: (D)

Labels are used to communicate the hazard of what’s inside the package. If the cold packs are just temperature-control aids and the actual contents have no hazard, there’s no extra labeling required on the outer packaging specifically because of the cold packs.

None of the listed labels apply to simple cold packs. A UN3373 Category B label would be needed only if the contents themselves are a biological substance, a BIOHAZARD symbol is used when there is a biological hazard, and a Class 3 label is for flammable liquids. Since the question refers to cold packs, these labels aren’t required.

A useful note: if dry ice were used as the cooling agent, that scenario would require different markings (UN1845 and Class 9 labels with “Dry Ice” wording), reflecting the actual hazard of the material inside the package, not the presence of cold packs themselves.