According to DIN EN ISO 14025, product category rules are the combination of specific rules, requirements, or guidelines used to create an Environmental Product Declaration for one or more product categories. In the IBU’s EPD programme, the PCR is divided into two parts: A and B. PCR Part A contains the uniform life cycle assessment calculation rules for all building products, as well as the requirements for the background report. Part B regulates the specific requirements of each product subgroup for the contents of an EPD.
