North American Industry Classification System (NAICS)

About NAICS

NAICS Structure proposed in Federal Register Notices

Issue Papers and Concept Reports relating to Industrial Classifications

Other Papers and Reports about NAICS


About NAICS

The North American Industry Classification System provides common industry definitions for Canada, Mexico, and the United States. It is being developed in cooperation with the US Economic Classification Policy Committee, Statistics Canada, and Mexico's Instituto Nacional de Estadistica, Geografia e Informatica.


Federal Register Notices

Complete documents
November 5, 1996 Notice presenting the entire NAICS structure
July 5, 1996 Notice presenting the entire proposed NAICS industry structure -- including hierarchy, coding system, and sectors not previously published. May 28, 1996 Notice proposing NAICS industries - (PDF format) - (ASCII format)
February 6, 1996 Notice proposing NAICS industries - (PDF) (ASCII)
July 26, 1995 Notice proposing NAICS Industries - (PDF) (ASCII)
July 26, 1994 Notice Announcing "NAICS" - (PDF) (ASCII)

By Agreement

Issue Papers relating to Industry Classifications

Issues Paper No. 1, "Conceptual Issues"
Issues Paper No. 2, "Aggregation Stuctures and Heirarchies"
Public Comments on Issues Papers No. 1 & 2
Issues Paper No. 3, "Collectability of Data"
Issues Paper No. 4, "Criteria for Determining Industries"
Issues Paper No. 5, "The Impact of Classification Revisions on Time Series"
Issues Paper No. 6, "Services Classifications"

ECPC Concept Reports

ECPC Report 1, "Economic Concepts in SIC Industries"
ECPC Report 2, "The Heterogeneity Index: A Quantitative Tool to Support Industrial Classifications"

Other Papers and Reports about NAICS

How NAICS will affect data users

Report on Auxiliary establishments PDF format - ASCII format


US Economic Classification Policy Committee (ECPC)

Member Agencies
Bureau of Economic Analysis
Bureau of Labor Statistics
Census Bureau

Bureau of Transportation Statistics
US Department of Agriculture
Social Security Administratrion
Energy Information Administration
Federal Emergancy Preparedness Administration
Federal Reserve Board
International Trade Administration
Office of Management and Budget

Send comments or questions about NAICS to naics@census.gov

back to Census
U.S. Census Bureau, last updated 6/14/96