Canada Road & Rail Transport - Special Situations Classification

Special situations arise when classifying substances that are listed by name in Schedule 1, classifying substances that are included in only one class and one packing group, and classifying substances that are included in more than one class or packing group. These situations must be handled according to specific procedures, as follows.

If a name of a dangerous good is shown as a shipping name in column 2 of Schedule 1, that name must be used as the shipping name. That shipping name and the corresponding data for that shipping name in columns 1, 3, and 4 of Schedule 1 must be used as the classification of the dangerous goods.

If a good is listed as having only one class and one packing group, the substance is a dangerous good and the selected shipping name must be the shipping name in column 2 of Schedule 1. The name used must most precisely describe the dangerous good itself. Choose the name most consistent with the class and the packing group, as determined by the criteria and tests. The shipping name and the corresponding data for that shipping name in columns 1, 3, and 4 of Schedule 1 must be used as the classification of the dangerous good.

If a substance meets the criteria for inclusion in more than one class or packing group, the substance is a dangerous good and its classification is determined as follows:

• The classes in which the dangerous good is included are ranked in order of precedence to determine the primary class and the potential subsidiary class or classes.
• The potential packing group is the one with the lowest of three Roman numerals, I, II, or III.
• The shipping name in column 2 of Schedule 1 is the name that most precisely describes the dangerous goods and for which the corresponding data in columns 1, 3, and 4 are the most consistent with the primary class, the potential subsidiary class or classes and the potential packing group.

The shipping name and the corresponding data in columns 1, 3, and 4 of Schedule 1 are used as the classification of the dangerous goods.

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