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Transportation of Dangerous Goods Regulations (SOR/2001-286)

Regulations are current to 2026-06-17 and last amended on 2026-06-17. Previous Versions

PART 4Dangerous Goods Marks (continued)

Options for Class 2, Gases

 Despite section 4.15, if a road vehicle transporting toxic gases, flammable gases or oxygen, or gases included in Class 2.2, Non-Flammable and Non-toxic Gases, is placarded with the Toxic Gases placard, the following placards are not required to be displayed on the road vehicle:

  • (a) the Flammable Gases placard;

  • (b) the Oxidizing Gases placard; and

  • (c) the Non-Flammable and Non-toxic Gases placard.

  • SOR/2002-306, s. 20
  • SOR/2008-34, s. 54
  • SOR/2014-159, s. 21

Class 2, Gases: Placards for Oxidizing Gases

 If any of the following dangerous goods are contained in a large means of containment, the means of containment must have displayed on it either the placard for Class 5.1 next to the placard for Class 2.2 or the oxidizing gas placard:

  • (a) UN1072, OXYGEN, COMPRESSED;

  • (b) UN1073, OXYGEN, REFRIGERATED LIQUID;

  • (c) UN3156, COMPRESSED GAS, OXIDIZING, N.O.S.;

  • (d) UN3157, LIQUEFIED GAS, OXIDIZING, N.O.S.

Class 2, Gases: Placards for UN1005, ANHYDROUS AMMONIA

 When UN1005, ANHYDROUS AMMONIA, is contained in a large means of containment, the large means of containment must have displayed on it

  • (a) the Class 2.3 placard and a UN number; or

  • (b) the anhydrous ammonia placard and, on at least two sides, the words “Anhydrous Ammonia, Inhalation Hazard” or “Ammoniac anhydre, dangereux par inhalation” in letters

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

    • (ii) at least 4 mm wide and 25 mm high in the case of a portable tank, and

    • (iii) at least 6 mm wide and 50 mm high in the case of all other large means of containment.

  • SOR/2014-159, s. 21
  • SOR/2017-137, s. 31
  • SOR/2017-253, s. 12

Class 2, Gases: Placards for Tube Trailers

 When dangerous goods included in Class 2, Gases, are contained in a combination of tubes that are a single unit as a result of being interconnected through a piping arrangement and are permanently mounted on a structural frame for transport, the combination of tubes may be placarded as if it were one large means of containment.

  • SOR/2014-159, s. 21

Placards and UN Numbers on a Compartmentalized Large Means of Containment

[
  • SOR/2014-159, s. 22
]
  •  (1) When dangerous goods included in different primary classes are transported in different compartments of a compartmentalized large means of containment,

    • (a) the primary class placard and the UN number for the dangerous goods in each compartment must be displayed on each side of that compartment; and

    • (b) each placard and UN number displayed in accordance with paragraph (a) must be displayed on each end of the compartmentalized large means of containment but each specific placard need only be displayed once on each end.

  • (2) When all compartments in a compartmentalized large means of containment contain dangerous goods included in the same primary class,

    • (a) the primary class placard must be displayed on each side and on each end of the compartmentalized large means of containment; and

    • (b) the UN number of the dangerous goods in a compartment must be displayed on each side of that compartment and on each end of the compartmentalized large means of containment, except that, if all the dangerous goods are included in Class 3, Flammable Liquids, only the UN number of the dangerous goods with the lowest flash point is required to be displayed on each side and on each end of the compartmentalized large means of containment.

  • (3) Despite paragraph (2)(b), if a compartmentalized large means of containment contains UN3475, ETHANOL AND GASOLINE MIXTURE, the UN number for ETHANOL AND GASOLINE MIXTURE must be displayed, in addition to the UN number of the dangerous goods with the lowest flash point, on each side and on each end of the compartmentalized large means of containment.

Elevated Temperature Sign

  •  (1) In addition to the requirements for placards and UN numbers in section 4.15, the elevated temperature sign must be displayed for dangerous goods that are contained in a large means of containment and that are offered for transport or transported at a temperature greater than or equal to

    • (a) 100°C if the dangerous goods are in a liquid state; and

    • (b) 240°C if the dangerous goods are in a solid state.

  • (2) The elevated temperature sign must be displayed on each side and on each end of the large means of containment next to each primary class placard for the dangerous goods or, if there is a subsidiary class placard, next to the subsidiary class placard.

  • SOR/2014-306, s. 28

Fumigation Sign

  •  (1) If the fumigation of a cargo transport unit is done using dangerous goods, the consignor must ensure that the fumigation sign

    • (a) is displayed at or immediately next to each entryway through which a person can enter into the cargo transport unit; and

    • (b) displays the name of the fumigant, the date and time the fumigant was applied and the date of ventilation.

  • (2) The fumigation sign must continue to be displayed on a cargo transport unit that has been fumigated until

    • (a) the cargo transport unit has been ventilated to remove harmful concentrations of the fumigant; and

    • (b) the dangerous goods that were in the cargo transport unit during the fumigation have been unloaded.

Marine Pollutant Mark

  •  (1) For dangerous goods that are marine pollutants and are in transport by vessel, the marine pollutant mark must be displayed in the following locations:

    • (a) on a small means of containment, next to the primary class label for the dangerous goods or, if there is a subsidiary class label, next to the subsidiary class label; and

    • (b) on each side and each end of a large means of containment next to the placard that is required to be displayed for the dangerous goods.

  • (1.1) If the shape or size of the means of containment so requires, each side of the mark may be reduced in length by the same amount, provided that the mark remains legible and that every element required on the mark is reduced proportionally.

  • (2) The marine pollutant mark is not required to be displayed when marine pollutants are

    • (a) on board a road vehicle or railway vehicle on a ro-ro ship; or

    • (b) contained in

      • (i) a small means of containment and are in a quantity that is less than or equal to 5 L for a liquid marine pollutant or 5 kg for a solid marine pollutant, or

      • (ii) a large means of containment and

        • (A) are in a quantity that is less than or equal to 500 kg,

        • (B) are transported by vessel on a domestic voyage, and

        • (C) the large means of containment does not contain dangerous goods included in Class 1 — other than Class 1.4 — or in Class 5.2, 6.1 or 7.

  • (3) The placard and UN number for substances included in Class 9 under subparagraph 2.43(b)(ii) are not required to be displayed if the marine pollutant mark is not required to be displayed under subsection (2).

Category B Mark

 The Category B mark must be displayed, instead of the Class 6.2 label, on a small means of containment that contains infectious substances that are UN3373, BIOLOGICAL SUBSTANCE, CATEGORY B.

Toxic – Inhalation Hazard

 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.

Lithium Battery Mark

  •  (1) For the purposes of special provision 34, the lithium battery mark must indicate

    • (a) “UN3090” for lithium metal cells or batteries;

    • (b) “UN3480” for lithium ion cells or batteries; and

    • (c) “UN3091” or “UN3481”, as appropriate, for lithium cells or batteries that are contained in, or packed with, equipment.

  • (2) When a means of containment contains lithium cells or batteries assigned to different UN numbers, all applicable UN numbers must be indicated on one or more marks.

  • (3) The mark must be a square or rectangle that is at least 100 mm wide and 100 mm high and have a hatching that is at least 5 mm wide.

  • (4) If the mark and all other dangerous goods marks required by this Part cannot be displayed on the means of containment such that they are all visible from the same viewpoint because of the shape or size of the means of containment, each side of the mark may be reduced in length, despite subsection (3), provided that

    • (a) the mark is at least 100 mm wide and 70 mm high; and

    • (b) every symbol, letter and number required on the mark is reduced proportionally.

Non-odorized Liquefied Petroleum Gases

  •  (1) A person must not import, offer for transport, handle or transport any of the following dangerous goods if they are non-odorized unless the words “NON-ODOURIZED”, “NONODORIZED”, “NOT ODOURIZED” or “SANS ODORISANT” are displayed on the means of containment in which the dangerous goods are contained:

    • (a) UN1011, BUTANE;

    • (b) UN1012, BUTYLENE;

    • (c) UN1055, ISOBUTYLENE;

    • (d) UN1075, LIQUEFIED PETROLEUM GASES or PETROLIUM GASSES, LIQUIFIED;

    • (e) UN1077, PROPYLENE;

    • (f) UN1969, ISOBUTANE;

    • (g) UN1978, PROPANE.

  • (2) The words must be displayed

    • (a) in the case of a small means of containment, in characters at least 6.3 mm high next to the shipping name; or

    • (b) in the case of a large means of containment, on two opposite sides of the large means of containment in characters at least

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

      • (ii) 4 mm wide and 12 mm high, in the case of a portable tank that has a capacity of less than 3 785 L, or

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

 

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