How to Read a Concordance Table

The relationship between the North American Industry Classification System Canada 1997 (NAICS Canada) and the third revision of the International Standard Industrial Classification of all Economic Activities (ISIC Rev. 3) is shown below in a concordance table. The table shows the Canadian interpretation of the relationships between the two classifications.

The concordance is shown at the lowest level of both classifications, namely at the 6 digit level in NAICS Canada and the 4 digit level in ISIC. In the table, two NAICS Canada classes are related to an ISIC code Z0000. The code does not exist in ISIC but rather is used to explain that these NAICS Canada classes are not classifiable in ISIC.

The relationships between the two classifications can be simple or complex. The following examples are presented to illustrate how the table should be read.

In the first example, one NAICS Canada class relates to exactly one ISIC class.

In the second example, one ISIC class is equivalent to more than one NAICS Canada class. The asterisk (Partial Flag) indicates that part of ISIC D1543 is equivalent to each NAICS Canada class. The ISIC activities corresponding to each NAICS Canada class are listed in the column labelled "Link".

In the third example, one NAICS Canada class is equivalent to more than one ISIC class.