Shippers must label hazardous materials. If an item is smaller than its label, how should the item be labeled?

1. The item may be tied together with other hazardous materials and labeled with a sheet of paper on the outside of the bundle.
2. The label may be attached to a tag that is securely attached to the package.
3. The item may be marked with a large orange dot.
4. The item may be placed in a box displaying a warning label.