North American Industry Classification System, 2022 revision. Jointly developed by the United States, Canada, and Mexico.
NAICS classifies business establishments by the type of economic activity in which they are engaged. It was developed to replace the older SIC (Standard Industrial Classification) and provide a production-oriented framework common across the three NAFTA/USMCA countries.
NAICS is updated every 5 years. The 2022 revision is the latest, superseding NAICS 2017.
5-level (though commonly presented as 6-digit codes): Sectors (2-digit, 20), Subsectors (3-digit), Industry Groups (4-digit), NAICS Industries (5-digit), National Industries (6-digit).
Six-digit numeric codes. First two digits = sector, third = subsector, fourth = industry group, fifth = NAICS industry, sixth = national detail (country-specific).
JSIC and NAICS are independently developed classification systems. NAICS is production-oriented while JSIC follows a mixed approach. The Soumu publishes a JSIC-to-NAICS correspondence table for statistical exchange purposes.
NAICS groups by production process; JSIC maintains separate categories for administrative/ancillary establishments. NAICS includes a dedicated Information sector (51) while JSIC groups Information under Division G.