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IES Standards in Public Review

ANSI Standards: Open for public review

For information about copies and process, contact Pat McGillicuddy, pmcgillicuddy@ies.org, or Dan Ozminkowski, dozminkowski@ies.org

The following drafts are available for ANSI Public Review comment from April 25 – June 9, 2025:

  • BSR/IES RP-28-2x Recommended Practice: Lighting and the Visual Environment for Older Adults and the Visually Impaired.
    This document is intended to increase the designers’ understanding of age-related vision loss and the importance of their design decisions that could affect the safety and independence of this growing sector of the population.
    Includes revisions for Loss of Contrast Sensitivity, Safety Accents: Lighting and Contrast, Exterior Ramps and Stairs contrast marking, Stairs, Escalators, Elevator contrast markings, physiological responses to light, exit stairway and landing calculations, new Annexes on luminance contrast recommendations and space upgrade examples.
  • BSR/IES RP-29-2x Recommended Practice: Lighting Hospital 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.
    Includes revisions to incorporate ANSI/IES TM-30 color metrics, many new illustrative application images, and revisions to Clinical Lab design guidance.

The following standards intended for Re-affirmation are open for ANSI Public Review April 25 – June 9, 2025:

  • BSR/IES LM-48-2x Approved Method: Testing Calibration of Locking Type Photoelectric Control Devices
  • BSR/IES TM-31-2x Technical Memorandum: Measurement Uncertainty for Lighting Equipment Calibration Using Integrating Spheres
  • BSR/IES TM-38-2x Technical Memorandum: Photometric and Electrical Measurements of Tunable-White Solid-State Lighting Products
    BSR/IES LP-4-2x Lighting Practice: Electric Light Sources – Properties, Selection, and Specification

The following drafts are available for ANSI Public Review comment from May 16 – June 30, 2025:

  • BSR/IES LP-10-2x Lighting Practice: Sustainable Lighting – An Introduction to the Environmental Impacts of Lighting
    The BSR/IES LP-10 draft has been completely revised from the 2020 version.
    The IES and the International Association of Lighting Designers (IALD) define sustainable lighting design as “meeting the qualitative needs of the visual environment with the least impact on the natural environment.” Visually effective and appealing, high-quality lighting provides the greatest environmental and economic value. The intent of this Lighting Practice (LP) document is to introduce the topic of sustainability, present its elements, and explain how it affects the design of lighting in process and product.
    Lighting has direct effects on society, the economy, and the environment at all stages of the life cycle, including manufacturing, use, and the end of useful life. A holistic sustainable design approach should optimize daylighting, conserve energy, reduce light pollution, utilize environmentally preferable materials, ensure durability and maintainability, facilitate responsible disposal, promote the circular economy, and provide equitable benefit to society.
  • BSR/IES RP-43-2x Recommended Practice: Lighting Exterior Applications
    The purpose of this Recommended Practice document (RP) is to identify the visual and environmental considerations associated with anthropogenic (i.e., human-generated) lighting at night and subsequently provide comprehensive instructions for the planning and design of pedestrian-oriented outdoor lighting systems. In this RP, pedestrian-oriented lighting includes areas where humans orient themselves, maneuver, shop, socialize, and rest during the darkness of nighttime hours. Accordingly, land uses and their related tasks will create a basis for the lighting zone definitions and a guideline guidance for planning community lighting planning that are provided herein. Pedestrian-related concerns issues of object detection, reassurance, and mood arewill be addressed, as are along with environmental issues important to flora and fauna, such as light trespass and sky glow.
    This RP will recommend solutions that balance the nighttime visual needs of humans with the environmental risks of using anthropogenic light at night. Recommendations will go beyond illuminance, which when considered alone is inadequate for addressing the visual needs of pedestrians or protection of the environment. Rather, this RP takes a comprehensive approach and makes flexible illumination recommendations based on lighting zones, glare avoidance, spectrum, and other visually influential conditions. Application of these recommendations will ultimately enhance the visual experience for people, while also respecting the environment.
    BSR/IES RP-43-2x also represents the merger of three standards; ANSI/IES LP-2-20, ANSI/IES LP-11-20 and RP-43-22 to harmonize and enhance exterior lighting recommended practices. The merger includes all new Lighting Zone definitions.

The following PINS (ANSI Project Initiation Notification System) are open for Public Comment from April 25 – May 25, 2025:

  • BSR/IES LS-4-20(R23) Lighting Science: Measurement of Light – The Science of Photometry
  • BSR/IES LM-20-2x Approved Method: Photometry of Reflector Type Lamps
  • BSR/IES LM-37-2x Approved Method: Guide for Determination of Average Luminance (Calculated) for Indoor Luminaires
  • BSR/IES LM-72-2x Approved Method: Directional Positioning of Photometric Data
  • BSR/IES LM-75-2x Approved Method: Goniophotometer Types and Photometric Coordinates
  • BSR/IES LM-77-2x Approved Method: Intensity Distribution Measurement of Luminaires and Lamps Using Digital Screen Imaging Photometry
  • BSR/IES LM-28-2x Approved Method: Guide for the Selection, Care and Use of Electrical Instruments in the Photometric Laboratory
  • BSR/IES LM-54-2x Approved Method: Guide to Lamp Seasoning
  • BSR/IES LM-80-2x Approved Method: Measuring Maintenance of Light Output Characteristics of Solid-State Light Sources
  • BSR/IES LM-84-2x Approved Method: Measuring Luminous Flux and Color Maintenance of LED Lamps, Light Engines, and Luminaires
  • BSR/IES TM-21-2x Technical Memorandum: Projecting Long Term Lumen, Photon, and Radiant Flux Maintenance of LED Light Sources
  • BSR/IES TM-28-2x Technical Memorandum: Projecting Long-Term Luminous Flux Maintenance of LED Lamps and Luminaires

The IES is an ANSI accredited Standards Developer. Our IES standards process complies with rigorous internal policies that are reviewed and approved by ANSI, as an independent body that oversees all ANSI SDOs and their procedures.

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