The Product Category Rule (PCR) for Processed Glass is now available for public comment, according to the Insulating Glass Manufacturer Alliance (IGMA). The PCR is based on revisions made to the Institute of Construction and Environment (Institut Bauen und Umwelt e.V., or IBU) standard Part B PCR structure for Glass Wall and Ceiling Coverings, 2014. Revisions/discussion points to make this PCR applicable to North America include: inclusion of references applicable to the North American market, according to IGMA.

Commentators are asked to use the Windows PCR Comment Form and return any comments to no later than June 17.