Recognized by LEED v4, NSF International Develops Flat Glass Product Category Rule (PCR)

PCRs provide necessary guidance for creating life cycle assessments and the resulting reports, environmental product declarations (EPDs)    NSF International, an independent global organization that writes standards, and tests and certifies products for the commercial furnishing, construction, food, water and consumer goods industries, in collaboration with the Glass Association of North America’s (GANA) Flat Glass Manufacturing Division, has developed a product category rule (PCR) for flat and float glass.Flat glass includes sheet glass, plate glass, rolled glass and float glass* and is used in a wide range of architectural, auto and decorative applications including automotive windshields, curtain walls, windows, doors and glass panels in furniture.  The PCR (UN CPC 3711) provides both a science-based and internationally recognized method for reporting the environmental impact of glass products and materials throughout their entire life cycle from cradle to grave.Product category rules define how to conduct a life cycle assessment (LCA) for a product group and what data to include in the resulting environmental product declaration (EPD), the third-party-verified report that explains the data generated from an LCA.

The U.S. Green Building Council’s Leadership in Energy and Environmental Design (LEED) v4 recognizes the value of PCRs/EPDs and includes credit language that recognizes EPDs.

“Developing the flat glass PCR with NSF International is an important next step toward a more sustainable future for the glass industry,” said Urmilla Jokhu-Sowell, Glass Association of North America Technical Director.  “This PCR will give glass manufacturers an opportunity to identify and focus on reducing the environmental impacts of their products and operations and to differentiate themselves in the marketplace.”

The flat glass PCR was established in accordance with international environmental management guidelines (ISO 14025: Environmental labels and declarations -- Type III environmental declarations) through the NSF National Center for Sustainability Standards (NCSS).  NSF International’s NCSS utilized an open consultative process to develop the PCR with participation from an expert panel of glass manufacturers, suppliers, regulatory agencies, life cycle practitioners, trade associations and end users. The NCSS has developed PCRs and American National Standards in sustainability for a wide range of product categories, including chemicals, commercial furnishings, flooring, building products and materials, and water treatment and distribution systems.

“The development of product category rules for flat and float glass helps meet the increasing demand for transparency in environmental claims. Our robust PCR development and EPD validation services are focused on assisting industries in meeting these market demands with science-based and verifiable information,” explained Tom Bruursema, General Manager of NSF International’s Sustainability Division.

For more information on NSF Sustainability, visit or contact Dennis Gillan at 734-476-2543 or

Editor’s note: To schedule an interview with NSF Sustainability General Manager Tom Bruursema, contact Greta Houlahan at 734-913-5723 or

About NSF International: NSF International is an independent global organization that writes standards, and tests and certifies products for the construction, food, water, health sciences and consumer goods industries to minimize adverse health effects and protect the environment ( Founded in 1944, NSF is committed to protecting human health and safety worldwide.  Operating in more than 150 countries, NSF International is accredited by the American National Standards Institute (ANSI) and has been collaborating with the World Health Organization since 1997 in water quality and safety, food safety and indoor environments.

NSF Sustainability draws upon this expertise in standards development, product assurance and certification, advisory services and quality management systems to help companies green their products, operations, systems and supply chains.

Additional NSF services include Education and Training, safety audits for the food and water industries, nutritional/dietary supplement certification, organic certification provided by QAI (Quality Assurance International) and management systems registrations delivered through NSF International Strategic Registrations (NSF-ISR). NSF-ISR services include ISO 14001 environmental management systems registration, Sustainable Forestry Initiative (SFI) and chain of custody (COC) certifications.

About GANA: The Glass Association of North America (GANA) is the leading association serving flat glass manufacturers, fabricators and glazing contractors. Comprised of the Building Envelope Contractors, Decorative, Energy, Flat Glass Manufacturing, Insulating, Laminating, Mirror and Tempering Divisions and the Protective Glazing Committee and the Fire Rated Glazing Council, GANA provides a forum for exchanging information and ideas and presenting a unified voice on matters affecting the glass industry and for developing the management and technical sophistication needed to remain competitive in a constantly changing business environment. To learn more about GANA, go to or follow us on Twitter at

* Float glass is made by floating molten glass on a bed of molten metal, typically tin. Modern windows are made from float glass. (Source: Glass Association of North America)

600450 Recognized by LEED v4, NSF International Develops Flat Glass Product Category Rule (PCR)
Date: 4 March 2014

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