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4.8(1) A UN number that is required by this Part to be displayed on a small means of containment or on a tag attached to it must be displayed in one of the following ways:
(a) next to the primary class label for the dangerous goods; or
(b) within a white rectangle located on the primary class label for the dangerous goods, without the prefix “UN”, but it must not obscure the symbol, class number, compatibility group letter or text on the label.
(2) A UN number that is required by this Part to be displayed on a large means of containment must be displayed in black numerals not less then 65mm high in one of the following ways:
(a) on an orange panel placed next to the primary class placard for the dangerous goods, without the prefix “UN”; or
(b) within a white rectangle located on the primary class placard for the dangerous goods, without the prefix “UN”, but it must not obscure the symbol, class number, compatibility group letter or text on the placard.
SOR/2008-34, s. 48