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NEMA: National Electrical Manufacturers Association

NEMA, the National Electrical Manufacturers Association, is a nonprofit organization that develops and publishes over 500 standards regarding the production and manufacturing processes for technologies involving the generation, transmission and use of electricity. Headquartered near Washington, D.C., United States, NEMA has approximately 450 member companies and, through them, NEMA standards affect over $120 billion dollars worth of United States domestic production. NEMA also serves as the administrator for the U.S. TAGs (United States Technical Advisory Group) to ISO/TC 145 (International Organization for Standardization/Technical Committee) and to some of its subcommittees. Standards from NEMA are available both individually, directly through the ANSI webstore, and as part of a Standards Subscription. If you or your organization are interested in easy, managed, online access to standards that can be shared, a Standards Subscription may be what you need - please contact us at: or 1-212-642-4980 or Request Proposal Price.

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ANSI Z535.1-2017

Safety Colors

Sets forth the technical definitions, color standards, and color tolerances for safety colors.

ANSI Z535.2-2011 (R2017)

Environmental and Facility Safety Signs

Regulates requirements for the design, application, and use of safety signs in facilities and in the environment through consistent visual layout. Reorganized to best describe the five types of safety signs used in facilities, the 2011 edition of this standard is revised to better harmonize with ANSI Z535.4, ANSI Z535.5, and ANSI Z535.6

ANSI C12.20-2015

Electricity Meters - 0.1, 0.2, and 0.5 Accuracy Classes

Establishes the physical aspects and acceptable performance criteria for 0.1, 0.2, and 0.5 accuracy class electricity meters meeting Blondel's Theorem.

ANSI Z535.3 / ANSI Z535.4 / ANSI Z535.6 - Product Safety Package

ANSI Z535.3 / ANSI Z535.4 / ANSI Z535.6 - Product Safety Package

ANSI/NEMA Z535.3 / ANSI/NEMA Z535.4 / ANSI/NEMA Z535.6 - Product Safety Package provides the requirements for the design, use, and placement of safety signs on various products. The ANSI/NEMA Z535.3 / ANSI/NEMA Z535.4 / ANSI/NEMA Z535.6 - Product Safety Package seeks to enable safety and accident prevention information through product safety signs and labels. The package is also supported by the criteria for safety symbols which address specific hazards and suggestions on avoiding personal injury. ANSI/NEMA Z535.3 / ANSI/NEMA Z535.4 / ANSI/NEMA Z535.6 - Product Safety Package includes:

  • ANSI Z535.3-2011 (R2017)
  • ANSI Z535.4-2011 (R2017)
  • ANSI Z535.6-2011 (R2017)

ANSI Z535.3-2011 (R2017)

Criteria for Safety Symbols

Provides general criteria for the design, evaluation, and use of safety symbols to identify and warn against specific hazards and information to avoid personal injury.


Safety color code - Complete set - ANSI/NEMA Z535.1, ANSI/NEMA Z535.2, ANSI/NEMA Z535.3, ANSI/NEMA Z535.4, ANSI/NEMA Z535.5, ANSI/NEMA Z535.6 and ANSI/NEMA Z535-2011

Includes all six parts and color chart:

  • ANSI/NEMA Z535-2011,
  • ANSI Z535.1-2017,
  • ANSI Z535.2-2011 (R2017),
  • ANSI Z535.3-2011 (R2017),
  • ANSI Z535.4-2011 (R2017),
  • ANSI Z535.5-2011 (R2017),
  • ANSI Z535.6-2011 (R2017)

ANSI C136.31-2018

Roadway and Area Lighting Equipment - Luminaire Vibration

Covers the minimum vibration withstand capability and vibration test methods for roadway and area luminaires


As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.