Historical
ANSI A138.1:2012
Green Squared American National Standard Specifications for Sustainable Ceramic Tiles, Glass Tiles, and Tile Installation Material
This voluntary product standard may be used by competent assessors to determine product conformance with the criteria defined herein for environmentally and socially sustainable ceramic tiles, glass tiles, and tile installation materials. This standard is intended to assist in the selection of tile and related installation materials that satisfy broad consumer preferences and market, government, and business procurement program demands for sustainability.
Tile Council of America [tca]