When is packing group information required on hazmat shipping papers?

• A. Always required for all hazmat
• B. When packaging group information is applicable to the material
• C. Never required
• D. Only for domestic shipments

Answer: (B)

Packing group information is included on hazmat shipping papers only when the material has an assigned packing group. Not every dangerous good has one, so you don’t add packing group details unless the substance or article is classified with a packing group (I, II, or III). This reflects how the hazard level is conveyed only when relevant, under regulations like 49 CFR for domestic shipments and IATA DGR/IMDG for international shipments. If a material has no packing group, there’s nothing to report in that field. For example, a flammable liquid with a packing group II must show that on the shipping papers, while a substance without a packing group does not.