2007 NAICS Definition
This U.S. industry comprises establishments primarily engaged in operating electric power transmission systems and/or controlling (i.e., regulatory voltage) the transmission of electricity from the generating source to distribution centers or other electric utilities. The transmission system includes lines and transformer stations.
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.
Index entries that bring you to this industry:
- Electric power control
- Electric power transmission systems
- Transmission of electric power

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