Transportation of Dangerous Goods Regulations

4.23 A person must not import, offer for transport, handle or transport dangerous goods that are toxic by inhalation and are included in Class 2.3 or 6.1 unless, in addition to any other dangerous goods marks required by this Part, the following is displayed on the means of containment:

• (a) in the case of a small means of containment, the words “inhalation hazard” or “dangereux par inhalation” in characters at least 12 mm high next to the shipping name, unless those words are already part of the shipping name or already displayed on one of the dangerous goods marks displayed on the means of containment; or

• (b) in the case of a large means of containment,

  • (i) either of the placards for Class 2.3 or either of the placards for Class 6.1, as applicable, and

  • (ii) if the displayed placard is not the placard specific to toxic-by-inhalation gases or the placard specific to toxic-by-inhalation substances the words “inhalation hazard” or “dangereux par inhalation” — unless those words already appear on one of the dangerous goods marks displayed on the means of containment — on two opposite sides of the means of containment in characters at least

    • (A) 6 mm wide and 100 mm high, in the case of a tank car,

    • (B) 4 mm wide and 25 mm high, in the case of a portable tank or an IBC, or

    • (C) 6 mm wide and 50 mm high, in the case of all other large means of containment.