2007 Economic Census
Revisions and changes to the NAICS classification structure occur every 5 years. The latest version was released in 2012.
Bridging Between NAICS Releases
The Bridge Reports show the relationships between two years of NAICS categories in detail and where they have changed.
- Find complete lists of classification changes at the NAICS Web site.
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Source: U.S. Census Bureau | 2007 Economic Census | Last Revised: November 13, 2012