Communication Marking, Labeling, & Placarding

Marking, labeling, and placarding are an essential part of the hazardous material communication requirements. Hazardous material packages must have the required marks and labels to communicate the hazards of that shipment to the people who may be exposed to the hazard, such as loaders or emergency responders.

Marking, labeling, and placarding specifications can be found in the following sections of the Hazardous Materials Regulations (HMR):

• Marking - 49 CFR §172.300
• Labeling - 49 CFR §172.400
• Placarding - 49 CFR §172.500

Marking, labeling, and placarding specifications can be found in Chapter 5 of the International Maritime Dangerous Goods (IMDG) Code.

Marking and labeling specifications can be found in Section 7 of the International Air Transport Association (IATA) Dangerous Goods Regulations (DGR).

To learn more about Multimodal Shipping visit our Multimodal DOT, IATA & IMDG HAZMAT Shipping Online Training web page.