NEMA ANSI C12.1-2026

Current Revision
American National Standard for Electric Metersβ€”Code for Electricity Metering

Best Price Guarantee Published: Feb 4, 2026 en - English 192 Pages

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This is the industry gold standard for electricity metering in North America. If you are dealing with utility billing, smart meters (AMI), or commercial energy monitoring, this is the rulebook everyone follows.

This Code establishes acceptable performance criteria for new types of AC watthour meters, demand meters, demand registers, pulse devices, and auxiliary devices. It describes acceptable in-service performance levels for meters and devices used in revenue metering. It also includes information on related subjects, such as recommended measurements, installation requirements, test methods, and test schedules. This Code for Electricity Metering is designed as a reference for those concerned with the art of electricity metering, such as utilities, manufacturers, and regulatory bodies.
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