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Q:  What are the SIC and NAICS codes? How can I find out what they mean?

A: 

The SIC and NAICS codes are used by the US Census Bureau to designate what type of activity a business performs. The codes are designated, based on the information you provided on your Master Business Application.

More information
List of NAICS codes - U.S. Census Bureau web site
Lookup a registered business (Business Records Database)
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