What could indicate that a shipment you are accepting contains hazardous materials?

Question

Cylinders and drums are often used to contain hazardous materials. Be sure to take the proper precautions if transporting a cargo of hazardous materials.

Accepted Answer

The cargo is stored in cylinder tanks.

Answer

The cargo is picked up from a supermarket.

Answer

The cargo is packaged in cardboard boxes.

Answer

The cargo has green packaging.

What could indicate that a shipment you are accepting contains hazardous materials?

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