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North American Industry Classification System (Main Page)

Industry Code Crosswalk
Standard Industrial Classification Code to North American Industry Classification System Code

Beginning in the 1930s, the industry coding system used to assign industry codes was the Standard Industrial Classification (SIC). Due to changes in economic conditions and the need to better track new and expanding industries, the North American Industry Classification System (NAICS) was established in 1997 through a cooperative effort between the United States, Mexico and Canada.

The SIC coding system groups establishments by their primary type of activity. The NAICS coding system groups establishments according to similar production processes. A complete discussion of the NAICS system can be found at the U.S. Census Bureau's North American Industry Classification System.

Note: This crosswalk is specific to an annual business survey conducted by states in cooperation with the U.S. Bureau of Labor Statistics and contains coding interpretations and additional codes in construction for specialty trade contractors. This is NOT the official SIC to NAICS 2002 crosswalk that will appear in the NAICS 2002 manual.

SIC to NAICS Crosswalk

Select a SIC industry code to view its related NAICS code:


becomes

Keyword Search: Enter a word or short phrase, then select Search SIC or Search NAICS.



Locate desired result, then CLICK to view the corresponding SIC and NAICS codes and titles above.

Search tips:

*Shorter search strings produce more results. Use partial words. "Equip" yields more results than "equipment".
* If you cannot locate an occupation, try a different wording. If, for example, searching for "doctor" does not locate the desired code, try searching for such words as "physicians", "surgeon", "internist", etc.
* Try varying single and plural words. "Secretaries" produces results, but "secretary" does not.
*Because the SIC and NAICS coding systems have different title and definitions, a search string that is effective in one may not be in the other.

Note: Some titles contain abbreviations that may prevent Keyword Search from locating a limited number of definitions.

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