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- NAICS
- The Standard Industrial Code (SIC) was last updated in 1987. The SIC has been replaced by the North American Industry Classification System (NAICS), which was updated in 2007.
- SIC
- Search the Standard Industrial Code (SIC) manual by keyword or 4-digit code.
- Comparison Charts
- See a comparison to previous years, or comparability chart between the Standard Industrial Code (SIC) and North American Industry Classification System (NAICS).