§4.10.1 Safety marks on an overpack

4.10.1 (1) When a dangerous goods mark is required by this Part to be displayed on a small means of containment and the small means of containment is inside an overpack, the person who prepares the overpack must display

(a) the word “Overpack” or “Suremballage”, in letters that are at least 12 mm high on a contrasting background, on at least one side of the overpack;