Which four items make up the basic description of a hazardous material on a shipping paper, and how must they be arranged?

Explanation

The basic description is the identification number, then the proper shipping name, then the hazard class or division number, then the packing group, and those four have to run in that sequence with no additional information interspersed. Two qualifiers travel with the rule. The sequence requirement opens with an except-as-provided clause for the rest of its own subpart, and the packing group entry itself is excepted for Class 1 explosives, self-reactive substances, Division 5.2 materials, and any entry that is assigned no packing group at all, Class 7 among them; where it does appear it is a Roman numeral, which the letters PG may precede. The wrong options fail for the same underlying reason in three different ways: each treats the order as negotiable or the content as partial, by reshuffling the four items, by swapping in commercial details such as the consignee and the weight, or by moving two of the four off the paper entirely.

Source: 49 CFR 172.202(b)