This checklist covers the requirements for placarding (enlarged labels) and marking of CTUs (e.g., freight containers, tanks, vehicles, bulk containers) carrying dangerous goods, based on Chapter 5.3 of the IMDG Code. This includes general provisions, specifications, and special marks. Always cross-reference with IMDG Code, as requirements may vary by hazard class, substance type, or special provisions. Ensure all placards, marks, and signs are durable, weather-resistant, and remain identifiable after at least three months’ immersion in the sea. Remove or mask irrelevant placards/marks after discharge of goods or residues.

We have done our best to avoid mistakes. If you notice any errors or inconsistencies, please let us know, the official IMDG Code will take precedence.