Variant of the National Occupational Classification (NOC) 2021 Version 1.0 for Science, Technology, Engineering and Mathematics (STEM)
The structure of the NOC 2021 Version 1.0 STEM grouping variant is hierarchical. It is composed of two levels.
Level 1: grouping (one-character alphabetical variant codes)
Level 2: detail (two-character alphanumeric variant codes, with examples provided at the 5th-digit standard code - unit group)