A shipper both marks and labels a hazardous materials package, and the regulations treat those as two separate requirements. On a non-bulk package, what is the marking?

Explanation

On a non-bulk package the marking is the proper shipping name plus the identification number, the number carrying a UN, NA or ID prefix, and both values come from the hazardous materials table, subject to the rule's opening except-as-otherwise-provided clause. The label is the separate thing: it is the hazard warning specified for the material in the table's label column, affixed to the package or containment device. The two requirements are linked in placement rather than merged in meaning, because a label belongs on a surface other than the bottom and near the proper shipping name marking where the package is big enough for that, and where a primary and a subsidiary label are both required they have to sit next to each other, with placement within 150 mm (6 inches) of one another treated as conforming. Markings carry their own quality rules too, being durable, in English, set on a sharply contrasting background and left unobscured by labels or attachments. The three wrong options all collapse the distinction, two by calling the diamond warning or a shrunken placard the marking and one by reducing the marking to commercial addressing with no identifying information at all.

Source: 49 CFR 172.301(a)(1)