Transportation of Dangerous Goods Regulations

4.9 (1) If the conditions that require the display of a dangerous goods mark change, the person having the charge, management or control of the means of containment must determine, as a result of the new conditions, whether the dangerous goods mark must be changed, covered or removed.

(2) The person who neutralizes the contents of the means of containment or who unloads, unpacks, cleans or purges the means of containment must cover or remove the dangerous goods mark when the danger indicated by the dangerous goods mark is no longer present in the means of containment.

(2.1) For the purposes of subsections (1) and (2), the material used to cover the dangerous goods mark must be durable and weather-resistant and withstand the conditions to which the material is exposed without substantial detachment or deterioration.

(2.2) Despite subsections (1) and (2), if the means of containment no longer contains dangerous goods, the person may flatten the means of containment, if the means of containment is a fibreboard large packaging, fibreboard box, bag, fibreboard IBC or flexible IBC, instead of changing, covering or removing the dangerous goods mark displayed on it.

(2.3) For greater certainty, a dangerous goods mark is not misleading as to the presence or nature of any danger if the person complies with this section.

(3) When the DANGER placard is permitted to be displayed on a large means of containment, a person may continue to display that placard, in place of any other placard, until the large means of containment no longer contains any of the dangerous goods identified by that placard.