Do I need to display UN number for a 4000 kg shipment?
In the last two weeks, I have received several calls about the requirement to add a UN number when shipping more than 4000 kg of one UN number.
There has been a change made by Amendment 6 to the TDG Regulations which was published in February 2008 in the table of 4.15 1(b). The word "must" has been changed to "may".
Therefore whenever a consignor is shipping more than 4000 kg of one UN number, the consignor may display the UN number.
See this page on Transport Canada’s website for complete text of section 4.15.