CA NAICS Canada 2026 Bilingual classifier directory
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Guides

Practical reading notes

Short explainers that help users read the code tree, crosswalks, and element notes.

Guide What NAICS Canada 2026 is

A source-faithful overview of the classification, its levels, and why the 2026 version matters.

 Guide How to read a NAICS code

Understand what each code length means and how the parent chain works.

 Guide How inclusions and exclusions work

The Elements CSV provides the practical boundary lines for each code.

 Guide NAICS Canada and ISIC Rev. 4

Use the official correspondence table to map Canadian codes to the UN classification.