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IESNA: Illuminating Engineering Society of North America

IESNA, the Illuminating Engineering Society of North America, is a nonprofit organization that develops and publishes standards regarding lighting. Headquartered in New York City, United States, IESNA standards are in effect throughout all of North America with its nearly 8,000 members. Internationally, IESNA collaborates with the International Commission on Illumination to promote uniformity with the rest of the world. Standards from IESNA 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: StandardsSubscriptions@ansi.org or 1-212-642-4980 or Request Proposal Price.

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ANSI/IES RP-8-18

Recommended Practice for Design and Maintenance of Roadway and Parking Facility Lighting

This Recommended Practice is a compilation of lighting design techniques and criteria, all offered for quality roadway lighting solutions. Each chapter should not be taken in isolation but used as a whole for quality lighting design for roadways and other environments where vehicles are present, such as tunnels, intersections, and parking lots.


ANSI/IES RP-7-17

Recommended Practice for Lighting Industrial Facilities

The primary purpose of this standard is to serve as a guide and educational tool for the design of permanently installed lighting systems for industrial facilities.


ANSI/IES RP-27.3-17

Recommended Practice for Photobiological Safety for Lamps - Risk Group Classification and Labeling

This standard covers the classification, labeling and informational requirements for lamps that emit optical radiation in the wavelength range from 200 nm to 3,000 nm, with exception for LED diodes used in optical fiber communication systems and for lasers.


ANSI/IES RP-27.1-15

Recommended Practice for Photobiological Safety for Lamps and Lamp Systems - General Requirements

This Recommended Practice covers the evaluation and control of optical radiation hazards from all electrically powered sources of optical radiation that emit in the wavelength range from 200 nm through 3,000 nm (3.0 um [micrometers]) except for light emitting diodes (LEDs) used in optical fiber communication systems and for lasers which are covered in a separate series of ANSI (American National Standards Institute) standards (Series Z136). Federal mandatory requirements for lamps subject to specific Federal Regulations take precedence over requirements in subsequent standards included in this series. Note 1: Units of wavelength in this document are exclusively in nanometers (nm). Note 2: Subtended angles are denoted by the full included angle, not the half angle.



ANSI/IES RP-29-16

Lighting for Hospitals and Healthcare Facilities

The objective of this document is to provide context, define challenges, and identify recommended lighting design practices for healthcare-specific environments. This document is not prescriptive but is intended to provide guidance and to inspire by identifying possibilities that enable designers to develop the appropriate solutions for complex situations and spaces.


ANSI/IES RP-22-11

Tunnel Lighting

A tunnel is a structure over a roadway which restricts the normal daytime illumination such that the driver's visibility is substantially diminished. The information in this Recommended Practice assists engineers and designers in determining lighting needs, recommending solutions, and evaluating resulting visibility at tunnel approaches and interiors.


ANSI/IES RP-27.2-00/R17

Recommended Practice for Photobiological Safety for Lamps and Lamp Systems - Measurement Techniques

This standard is to be used by the radiometrist for guidance regarding special problems related to photobiological hazard measurements. Additionally, specific recommendations are included to provide consistency and to reduce test design time and effort.


IES G-1-16

Guideline on Security Lighting for People, Property, and Public Spaces

This document is intended to provide specific guidelines for situations where it has been determined that security is an issue and is an important determining factor in the design or retrofit of a given property.This publication includes specific sections dealing with critical infrastructure and homeland security. In addition, we have incorporated many of the lessons learned and applied by these agencies throughout.



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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.

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