As such, Version 2.0 entails significant changes of the impact indicators compared to Version 1.0, while the inventory indicators remain the same but some of them have become optional. Among the inventory indicators of EN 15804, the six indicators of use of primary energy are mandatory, while the remaining 11 inventory indicators are optional. This version has adopted the core environmental impact indicators of EN 15804:2012+A2:2019/AC:2021 as mandatory indicators. The latest update of the default list was made, referred to as Version 2.0. Information about such transition periods are published here. In case of updates, the previous version of the default list is valid in parallel to the new version during a transition period of at least 90 days. The default list is regularly updated based on developments in LCA methods, practices and standards, while ensuring the market stability of EPDs. Rules in a PCR may deviate from the default list, if such deviations have been justified in the PCR development process. This is a list of the default environmental impact and inventory indicators, and impact assessment methods, to use in EPDs of the International EPD System. Introduction to the default list of environmental performance indicators
