Decorative glass products have become important components of the architectural landscape. They contribute to the architecture and design requirements of interior and exterior applications for residential, commercial and industrial projects. In order to preserve the quality and integrity of decorative glass products and to ensure their long-term performance, fabricators, glazing contractors, related sub-contractors (e.g. millwork contractors) and building owners should follow appropriate procedures during handling, fabrication, installation, and cleaning. The guidelines within this document are intended to inform and assist those who fabricate, use and maintain decorative glass products. The original version of this document was approved and published in 2008. This edition of the paper was updated and published in March 2020.