The National Fenestration Rating Council (NFRC) board of directors recently approved six NFRC documents now open for public review, in accordance with the American National Standards Institute’s (ANSI) process. The public review and comment period is open until Feb. 13, 2023.

The six NFRC technical documents include:

  • NFRC 100: Procedure for Determining Fenestration Product U-factors;
  • NFRC 200: Procedure for Determining Fenestration Product Solar Heat Gain Coefficient and Visible Transmittance at Normal Incidence;
  • NFRC 202:  Procedure for Determining Translucent Fenestration Product Visible Transmittance at Normal Incidence;
  • NFRC 203: Procedure for Determining Visible Transmittance of Tubular Daylighting Devices;
  • NFRC 400: Procedure for Determining Fenestration Product Air Leakage; and
  • NFRC 500: Procedure for Determining Fenestration Product Condensation Index Rating.
  • The announcement appeared in a Standards Action issued Dec. 30, 2022, marking the beginning of the open public comment period. With the documents being available electronically, the comment period is 45 days, ending on Feb. 13, 2023.

    All changes subject to public review have been previously balloted and approved by NFRC membership and its board of directors.
    The documents up for review, additional details, and applications for joining the committee are available on the ANS Standards Committee group page, which is open to the public.

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