North American Industry Classification System
The North American Industry Classification System or NAICS (pronounced "nakes") is a classification of business establishments by type of economic activity (process of production). It is used by government and business in Canada, Mexico, and the United States of America. It has largely replaced the older Standard Industrial Classification (SIC) system, except in some government agencies, such as the U.S. Securities and Exchange Commission (SEC).
An establishment is typically a single physical location, though administratively distinct operations at a single location may be treated as distinct establishments. Each establishment is classified to an industry according to the primary business activity taking place there. NAICS does not offer guidance on the classification of enterprises (companies) which are composed of multiple establishments.
The NAICS numbering system employs a five or six-digit code at the most detailed industry level. The first five digits are generally (although not always strictly) the same in all three countries. The first two digits designate the largest business sector, the third digit designates the subsector, the fourth digit designates the industry group, the fifth digit designates the NAICS industries, and the sixth digit designates the national industries.
|Digit designation||Aggregation level|
|Code||Titles of categories|
|54||Professional, scientific, and technical services|
|541||Professional, scientific, and technical services|
|54111||Offices of lawyers|
|541110||Offices of lawyers|
|11||Agriculture, Forestry, Fishing and Hunting|
|21||Mining, Quarrying, and Oil and Gas Extraction|
|41/42||Wholesale Trade (41 in Canada, 42 in the United States)|
|48-49||Transportation and Warehousing|
|52||Finance and Insurance|
|53||Real Estate and Rental and Leasing|
|54||Professional, Scientific, and Technical Services|
|55||Management of Companies and Enterprises|
|56||Administrative and Support and Waste Management and Remediation Services|
|62||Health Care and Social Assistance|
|71||Arts, Entertainment, and Recreation|
|72||Accommodation and Food Services|
|81||Other Services (except Public Administration)|
|91/92||Public Administration (91 in the United States, 92 in Canada)|
NAICS is a collaborative effort by Mexico's Instituto Nacional de Estadística y Geografía (INEGI), Statistics Canada, and the United States Office of Management and Budget (OMB), through its Economic Classification Policy Committee (ECPC), staffed by the Bureau of Economic Analysis (BEA), the Bureau of Labor Statistics (BLS), and the Census Bureau. The system is designed to be largely compatible with the United Nations Statistical Office's International Standard Industrial Classification system (ISIC). NAICS versions are released every five years.
With the first version, released in 1997, NAICS offered enhanced coverage of the service sector, relative to SIC. The 2002 revision accommodated significant changes in the Information Sector. The 2012 revision slightly reduced the number of industries and modified six sectors.
- North American Industry Classification System (NAICS): Executive Office of the President Office of Management and Budget; Jist Works; (January 1999); ISBN 1-56370-537-0
- Harris' Complete Guide to NAICS by Scott M. Vogel; Harris Infosource; (September 19, 2001); ISBN 1-55600-922-4
- NAICS Desk Reference, Jist Works, U. S. Census Bureau; JIST Publishing; (July 2000); ISBN 1-56370-694-6
- Division, Special Projects Staff, Service Sector Statistics. "North American Industry Classification System (NAICS) Frequently Asked Questions (FAQs)". www.census.gov. Retrieved 2016-12-24.
- "2017 North American Industry Classification System". United States Census Bureau. April 25, 2017.
- "NAICS 2017 - 41 - Wholesale trade". www23.statcan.gc.ca. Statistics Canada. Retrieved 2019-10-21.
- "NAICS 2017 - 92 - Public administration". www23.statcan.gc.ca. Statistics Canada. Retrieved 2019-10-21.
- "14. How does NAICS 2012 differ from NAICS 2007?". Frequently Asked Questions NAICS. United States Census Bureau. Retrieved December 18, 2012.