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Electric Bulk Power Transmission and Control

NAICS Industry 221121

NAICS [2012]UtilitiesUtilitiesElectric Power Generation, Transmission & DistributionElectric Power Transmission, Control, and DistributionElectric Bulk Power Transmission & Control

NAICS [2012] Industry 221121 ⇒ SIC [1987] Industry Codes

SIC CodeU.S. IndustryRegistrants
In ascending order
4911Electric Services§714
4931Electric and Other Services Combined§194
4939Combination Utilities, Not Elsewhere Classified9
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§ In the SIC [SEC] subset of SIC [1987].



Businesses & Products of NAICS Industry 221121
  • Electric power control
  • Electric power transmission systems
  • Transmission of electric power
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