2012 Edition

national industry 221121

Electric Bulk Power Transmission and Control


This U.S. industry comprises establishments primarily engaged in operating electric power transmission systems and/or controlling (i.e., regulating voltages) the transmission of electricity from the generating source to distribution centers or other electric utilities. The transmission system includes lines and transformer stations.

The immediate parent of national industry 221121 is international industry 22112: Electric Power Transmission, Control, and Distribution

2012 NAICS Edition Cross References

  • Establishments primarily engaged in:
  • Generating electric energy:are classified in Industry 22111, Electric Power Generation; and
  • Distributing electricity to final consumers:are classified in U.S. Industry 221122, Electric Power Distribution.


The NAICS editions in which this code was present are indicated below. In the event that a code was changed from the prior edition the equivalent value in that edition is provided for reference.

Edition Value
2002 221121 -
2007 221121 -
2012 221121 -
2017 221121 -

Insurance Industry Mappings

The US Property and Casualty Insurance Industry may use the following classification descriptions which might encompass national industry 221121, Electric Bulk Power Transmission and Control:

  1. combination utility not otherwise classified
  2. electric and other service combined
  3. electric bulk power transmission and control
  4. electric light or power company not otherwise classified
  5. electric light or power company not otherwise classified electric bulk power transmission and control
  6. electric light power company
  7. electric power generation transmission and distribution
  8. electric power transmission control and distribution
  9. electric service
  10. pipeline operation non flammable
  11. pipeline operation non flammable utility
  12. power electric light company
  13. utility


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