Environmental Product Declarations (EPDs) are standardized and widely applied LCA based sustainability assessments which can be used to evaluate the environmental impact of commercial products. EPDs are more complete than Carbon Footprints as more diverse impact categories are assessed, but they are not as extensive as the more advanced Product Environmental Footprints.
The evaluation is performed following the Product Category Rules (PCRs) published by Environdec, the international EPD system. These PCRs define the impact categories that are to be assessed for different product types as well as the structure and contents of the report. Only the most important impact categories for the matching product category are evaluated. These can include for example climate change, acidification, and eutrophication.
Local regulations sometimes require the publication of EPDs to substantiate green product claims, so they are often a good choice for the evaluation of (almost) market-ready products.