Transportation of Dangerous Goods Regulations

4.7 (1) A label must be square and must be displayed on a means of containment in the same orientation as it appears in the appendix to this Part, relative to the bottom of the means of containment, so that the square is on point if the means of containment is upright.

(2) Each side of a label must be at least 100 mm in length and have a line running approximately 5 mm inside the edge.

(3) Despite subsection (2), except for a Class 7 label,

• (a) each side of a label may be reduced in length by the same amount but must not be reduced to less than 30 mm, if

  • (i) the label is displayed on the shoulder of a cylinder, or

  • (ii) the label would not be visible, because of the shape or size of the means of containment, from the same viewpoint as the other dangerous goods marks required to be displayed on the means of containment by this Part; and

• (b) each side of a label that must be displayed on a non-refillable UN pressure receptacle may be reduced in length in accordance with ISO 7225, if

  • (i) the label would not be visible from the same viewpoint as all the other dangerous goods marks required to be displayed on the means of containment by this Part, even if the sides of the label were reduced to 30 mm, and

  • (ii) the label would not be visible from that viewpoint because of the shape or size of the receptacle or the mechanisms for securing the receptacle during transport.

(4) If each side of a label is reduced in length under subsection (3), every element required on that label must be reduced proportionally.

(5) Except for a Class 7 label and for the Class 9 label specific to lithium batteries, a person may include text on a label that describes the danger that the dangerous goods pose and that is illustrated on that label if

• (a) the text is located under the symbol or, in the case of a label for Class 1.4, 1.5 or 1.6, under the class number illustrated in the top corner;

• (b) the text, if it is in a language other than English or French, includes a translation in English or French; and

• (c) the text and the translation, if any, does not obscure any symbol or other text on the label.