Variant of the North American Product Classification System (NAPCS) Canada 2022 Version 1.0 for Raw Materials Price Index - RMPI (regrouping variant)

Hierarchical structure

The structure of the NAPCS Canada 2022 Version 1.0 variant for RMPI is hierarchical. It is composed of five levels:

level 1: section (three-character alphanumeric codes)
level 2: group (three-digit standard codes and four-character alphanumeric codes)
level 3: class (five-digit standard codes and six-character alphanumeric codes)
level 4: subclass (six-digit standard codes)
level 5: detail (seven-digit standard codes)