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Transport Canada

The notice, released in a handout format, includes a reminder for a requirement in the Transportation of Dangerous Goods Regulations (TDGR) regarding accepted marks on a consignment, particularly some marks that will no longer be permitted after December 31, 2020.

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Click here to view the French Version

Some marks that are currently authorized for use on dangerous goods shipped as a limited quantity will expire on December 31, 2020. Marks in the form of text and the white square on point with a UN number are no longer accepted after December 31, 2020.

Subsection 1.17(5) and 1.17(6) of the TDGR includes the accepted marks that must be used as of January 1, 2021.

If you have any questions regarding the exemption notice, please contact Transport Canada at

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