06/09/2026
Reminder! The following document is open for public review and comment through June 29: NFRC 100-2026[E0A0]: Procedure for Determining Fenestration Product U-factors
GREENBELT, MD (May 21, 2026) — The National Fenestration Rating Council (NFRC) Board of Directors has approved an NFRC document, now open for public review in accordance with the American National Standards Institute’s (ANSI) process. The public review and comment period run from...