North American Industry Classification System

The North American Industry Classification System (NAICS) is the industry classification system being developed to replace the current Standard Industrial Classification System (SIC). NAICS first appeared in the 1997 Economic Census.

• SIC - NAICS Comparison Tables
  
  
• Standard Industrial Classification (SIC) Manual 1987 OSHA
  
  
• NAICS Homepage Census Bureau
  
  
• Unofficial Clearinghouse Jennifer Boettcher, Georgetown University
  
  
• April 9, 1997 Federal Register Notice of Final Decision
  
  
• November 5, 1996 Federal Register Notice of Solicitation of Comments on Final Recommendations of the NAICS, Office of Management and Budget