Where should the international biological hazard symbol appear on packaging?

• A. On the bag only
• B. On the label only
• C. On the bag and the label with the symbol
• D. Not required

Answer: (C)

The symbol communicates a hazard to anyone who may handle the package, so it needs to be visible on all exterior indicators of danger. Placing the international biohazard symbol on both the bag that actually contains the waste and the label attached to the packaging ensures that the warning cannot be missed. If the bag shows the symbol, handlers who encounter the bag directly will recognize the risk even if the label gets damaged or removed. If only the label bears the symbol, a torn or detached label could leave the hazard hidden; conversely, relying on the bag alone could miss important shipment and handling details that are often conveyed by the label. Do not rely on a single element for hazard communication—the combination of symbol on the bag and on the label provides robust, continuous visibility and complies with international labeling standards for infectious substances.