Major Group Definition
The second tier in the legacy SIC system, represented by the first two digits of the code grouping specific industrial types.
Related Guides & Tools
- SBA Size Standards Guide — Legal rules of small business classification.
- Federal Contracting Identifiers Guide — Overview of CAGE, DUNS, and Unique Entity IDs.
- SIC ↔ NAICS Concordance Crosswalk — Search and map old SIC codes to modern formats.