North American Industry Classification System 2022International Standard Industrial Classification of All Economic Activities, Rev.4
NAICS 2022 221121 to ISIC Rev 4
Crosswalk mapping from NAICS 2022 221121 "Electric Bulk Power Transmission and Control" to ISIC Rev 4. 1 official equivalence.
NAICS 2022 221121 in ISIC Rev 4
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About NAICS 2022 221121
221121 Electric Bulk Power Transmission and ControlThis 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. Cross-References. Establishments primarily engaged in--