本技术报告为EN 15804的用户提供了一般性指导，以及通过以下方式制定互补产品类别规则（c-PCR）的用户的一般指导: 说明CEN技术委员会为建筑产品（产品TC）使用EN 15804的一般原则，以确保产品技术委员会生产的互补PCR的一致性; “解决产品技术委员会，制造商或其分包商提供的问题，提供LCA研究的基础是环境产品声明（EPD）和EPD计划运营商，其中包括特定子类别的c-PCR在其PCR注册表中

This Technical Report provides general guidance to the users of EN 15804 and those preparing complementary Product Category Rules (c-PCR's) by: — stating general principles for the use of EN 15804 by CEN Technical Committees for construction products (Product TC's) in order to ensure consistency among the complementary PCR produced by Product TC's; — addressing the questions raised by Product TC's, manufacturers or their sub-contractors who provide LCA studies underlying an Environmental Product Declaration (EPD) and by EPD programme operators who include c-PCR of specific subcategories in their PCR registry.