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Quarterly Census of Employment and Wages

2007 North American Industry Classification System (NAICS)

Beginning with the release of data for 2007, QCEW publications used the 2007 version of NAICS as the basis for the assignment and tabulation of economic data by industry.

The Census Bureau NAICS 2007 manual defines the following categories of industries:

  • 20 sectors
  • 99 subsectors
  • 313 four-digit industry groups
  • 721 five-digit NAICS industries
  • 1,175 six-digit industries

BLS has extended the NAICS coding upwards into 2 domains and 11 supersectors, as well as downward into greater details for subsector 238, specialty trade contractors, dividing the 19 industries into residential and nonresidential categories. BLS files include totals for unclassified records at each NAICS level of aggregation. Unclassified, NAICS 999999, is its own supersector under the service-producing domain. The industry categories under subsector 238 and the inclusion of unclassified bring the number of 6-digit industries to 1,195. Yet, there are two 6-digit industries not used in the United States: Dual purpose cattle ranching and farming, NAICS 112130, and offices of notaries, NAICS 541120. Thus, the number of 6-digit industries for which BLS publishes data is 1,193.

NAICS 2007 coding represents a relatively minor revision to the NAICS 2002 system that had been in use with QCEW data beginning with the release of 2001 data. However, at the detailed industry level, some of the changes are substantial. Some industries were added, some were deleted, and others were split into two or more industries. In first quarter 2007, approximately 1 percent of both employment and establishments and 2 percent of total wages were reclassified into different industries as a result of the revision. Industries introduced with 2007 NAICS are:

Information (NAICS 51)
517210            Wireless telecommunications carriers
517911            Telecommunications resellers
517919            All other telecommunications
51913              Internet publishing and web search portals
519130            Internet publishing and web search portals

Professional, Scientific and Technical Services (NAICS 54)
541711            Research and development in biotechnology
541712            Other physical and biological research

Administrative and Waste Services (NAICS 56)
561311            Employment placement agencies
561312            Executive search services

Six-digit industries that were split into two or more industries with this revision include:

Agriculture, Forestry, Fishing, and Hunting (NAICS 11)
111211            Potato farming
111219            Other vegetable (except potato) and melon farming
111998            All other miscellaneous crop farming
112519            Other aquaculture

Manufacturing (NAICS 31-33)
314999            All other miscellaneous textile product mills
315211            Men’s and boys’ cut and sew apparel contractors
315212            Women’s, girls’, and infants’ cut and sew apparel contractors
326199            All other plastics products manufacturing
326291            Rubber product manufacturing use
326299            All other rubber product manufacturing
333298            All other industrial machinery manufacturing
333415            Air-conditioning and warm air heating equipment and commercial and industrial refrigeration equipment manufacturing
333994            Industrial process furnace and oven manufacturing
333997            Scale and balance manufacturing
333999            All other miscellaneous general purpose machinery manufacturing
334220            Radio and television broadcasting and wireless communications equipment manufacturing
334515            Instrument manufacturing for measuring and testing electricity and electrical signals
336612            Boat building
337127            Institutional furniture manufacturing
339113            Surgical appliance and supplies manufacturing

Information (NAICS 51)
517110            Wired telecommunication carriers

Finance and Insurance (NAICS 52)
525990            Other financial vehicles

Real Estate and Rental and Leasing (NAICS 53)
531110            Lessors of resident buildings and dwellings
531120            Lessors of nonresidential buildings (except miniwarehouses)
531130            Lessors of miniwarehouses and self-storage units
531190            Lessors of other real estate property

Professional, Scientific and Technical Services (NAICS 54)
541612            Human resources and executive search consulting services

For more information on industry classification as implemented by the QCEW program, please refer to the QCEW Industry Classification page.


Last Modified Date: October 21, 2011