NAICS Code 221121

NAICS 221121

NAICS Code 221121 – Electric Bulk Power Transmission and Control

Definition of NAICS Code 221121: This U.S. industry comprises establishments primarily engaged in operating electric power transmission systems and/or controlling (i.e., regulating voltage) the transmission of electricity from the generating source to distribution centers or other electric utilities. The transmission system includes lines and transformer stations.

  • You can also download your own copy of the complete 2017 NAICS Classification Manual. The NAICS Manual is updated every five years. The 2017 copy will be applicable until a new edition is produced in 2022.

Cross Reference Guide for Code 221121

What codes are similar to this classification that might be a more applicable code? The cross-reference guide below displays the codes for other similar industries. Please review to find the most applicable classification.

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

Other Index Entries for NAICS 221121

The North American Industry Classification System contains multiple index entries that are each descriptive of the same code. The bulleted list below shows all applicable index entries (Current and former) that are associated with this classification. These index entries further elaborate on the scope of applicable industries that have already been defined at the top of this page.

  • Electric power control
  • Electric power transmission systems
  • Transmission of electric power

Insurance Conversion Table for NAICS Code 221121

Looking for an insurance classification other than the North American Industry Classification System? If a company falls within the industry defined on this page, then the class codes mentioned below may be applicable. Please note that the bulleted cross-reference guide below is not authoritative. Users should have an insurance professional review to ensure proper insurance classification.

  • NCCI WC (Varies by state): 7539NAICS 221121
  • CA WC: 7539
  • DE WC: 755
  • PA WC: 755
  • MI WC: 7539
  • NJ WC: 7539
  • NY WC: 7539
  • WY WC: 221121
  • GL: 92445
  • SIC: N/A

Resources: Praxiom, AceGroupTDICalifornia Division of Workers Compensation, Delaware Workers Compensation Manual, Pennsylvania Workers Compensation Manual, Michigan Workers’ Compensation Placement Facility: Classification Definitions, New Jersey Workers Compensation and Employers Liability Insurance Manual, New York Workers Compensation and Employers Liability, North American Industry Classification System, Florida Underwriting Guide: Commercial General Liability Classifications,  Standard Industrial Classifications.

The suggested cross reference guide for NAICS code 221121 is based on our research using the resources cited above.

Correlating Code Breakdown for North American Industry Classification System

NAICS codes are broken down by digit. The broadest description starts with the 2 digit sector codes. The 3 digit subsector codes are more specific, then the 4 digit industry group, 5 digit industry, and the most specific is the 6 digit NAICS code (Where you are now). If the code on this page does not describe the industry of the business in question, then select the largest applicable code below. From there, follow through the progression of smaller digits to the larger digits in order to obtain the most specific 6 digit classification.

  • Sector 22: Utilities
  • Subsector 221: Utilities
  • Industry Group 2211: Electric Power Generation, Transmission and Distribution
  • Industry 22112: Electric Power Transmission, Control, and Distribution
  • 6 Digit Code(s) NAICS 221121: Electric Bulk Power Transmission and Control
  • 6 Digit Code(s) NAICS 221122: Electric Power Distribution
Other helpful NAICS Downloads

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NAICS Code 221121