national industry 221121
Electric Bulk Power Transmission and Control
Overview
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
2017 NAICS Edition Cross References
Sub-Descriptions
History
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 | Existed | Equivalent Value |
|---|---|---|
| 2002 | 221121 | |
| 2007 | 221121 | |
| 2012 | 221121 | |
| 2017 | 221121 | |
| 2022 | 221121 |
Standard Industrial Classification (SIC) Mappings
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:
- combination utility not otherwise classified
- electric and other service combined
- electric bulk power transmission and control
- electric light or power company not otherwise classified
- electric light or power company not otherwise classified electric bulk power transmission and control
- electric light power company
- electric power generation transmission and distribution
- electric power transmission control and distribution
- electric service
- pipeline operation non flammable
- pipeline operation non flammable utility
- power electric light company
- utility
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