What is Undeclared and Misdeclared Dangerous Goods?

Undeclared and Misdeclared dangerous goods is a growing concern in maritime industry. What do these terms mean?

Undeclared dangerous goods means any goods which are listed in the IMDG Code by name or meeting any of the classification criteria of the IMDG Code but not declared by the shipper as dangerous goods.

Misdeclared dangerous goods means any dangerous goods not declared correctly as per the requirement of IMDG Code. Which may include incorrect or misleading description of dangerous goods in dangerous goods declaration, misleading Marking, Labeling and placarding.