The intended application of this product category rules (PCR) document is to provide a common set of specific rules, requirements and guidelines for developing ISO 14025 conformance Type III environmental product declarations (EPDs) for North American (NA) produced gypsum board products and to specify the underlying requirements of the Life cycle assessment (LCA) in conformance with The International Organization for Standardization (ISO) 14040 series of LCA standards.
The primary users of this PCR will be the Gypsum Association (GA) and its member companies. Other NA gypsum board manufacturers could use this PCR as well.