Canada Road & Rail Transport - Small Means of Containment

For each of the dangerous goods in transport in a small means of containment, one label must be displayed for the primary class and one for each subsidiary class set out in column 3 of Schedule 1. Exceptions to this include the following:

• A label is not required to be displayed on a small means of containment that is inside another small means of containment if the other small means of containment has a label displayed on it and is not opened during loading or unloading or while the dangerous goods are in transport.
• The oxidizing gas label, illustrated in the appendix to Part 4 of the TDG Regulations, must be displayed on a small means of containment for the following dangerous goods: UN1072, Oxygen, Compressed; UN1073, Oxygen, Refrigerated Liquid; UN3156, Compressed Gas, Oxidizing, NOS; and UN3157, Liquefied Gas, Oxidizing, NOS
• If the dangerous goods are included in Class 7, Radioactive Materials, two labels must be displayed on the small means of containment for the primary class.

In addition, when dangerous goods are included in Class 2, Gases, and are contained in a combination of cylinders meeting the following specifications, the combination of cylinders may be placarded as one large means of containment.

• Each cylinder has a capacity greater than 225 litres
• Cylinders are a single unit as a result of being interconnected through a piping arrangement
• Cylinders are permanently mounted on a structural frame for transport
• Cylinders have a combined capacity exceeding 450 litres

When a label is required to be displayed on a small means of containment, it must be displayed in one of the following ways:

• On any side of the outer surface other than the side on which it is intended to rest or to be stacked during transport
• On or near the shoulder of a cylinder containing dangerous goods
• In the case of a label for dangerous goods included in Class 7, Radioactive Materials, on two opposite sides of the outer surface of a small means of containment, other than the side on which it is intended to rest or to be stacked during transport

When dangerous goods in transport are in a small means of containment on which the primary class label for the dangerous goods is displayed, the UN number for the dangerous goods must be displayed on or next to the primary class label.

To learn more about Transporting Dangerous Goods in Canada visit our Transporting Dangerous Good by Road & Rail Online Training web page.