The updated version of American National Standards Institute (ANSI) Z97.1 is now available on the organization’s website. ANSI Z97.1-2026 is a national standard specifying safety performance requirements and testing methods for glazing materials used in buildings to reduce injury risk. The update revises ANSI Z97.1-2015 (R2020).

According to Julia Schimmelpenningh, technical engagement manager (architectural) at Eastman, key changes to the 2026 edition center on weathering, referenced standards and scope.

Key updates include:

• The addition of vacuum insulating glazing (VIG) to go along with laminated, tempered, organic-coated, plastic, mirror and bent glass;
• The consolidation of five separate weathering standards (D1435, D2565, D4459, G155, ISO 4892-2) into a single umbrella practice: ASTM C1900;
• The addition of ASTM E903 as an alternate visible light transmittance measurement method; and
• More flexibility to impact tests and classification (2015: Class A/B, four-specimen requirement and same drop heights; 2016: Class A/B, four-specimen, drop heights identical with the addition of VIG impact and rating protocol).

ANSI Z97.1 is developed by the Accredited Standards Committee Z97 and published by the Glazing Industry Secretariat Committee.