Environmental Product Declaration certified Windows
An EPD (Environmental Product Declaration) is an independently verified and registered document that communicates transparent and comparable information about the life-cycle environmental impact of products.
Having an EPD for a product does not imply that the declared product is environmentally superior to alternatives — it is simply a transparent declaration of the life-cycle environmental impact.
The relevant standard for Environmental Product Declarations is ISO 14025, where they are referred to as "type III environmental declarations". A type III environmental declaration is created and registered in the framework of a programme, such as the International EPD System.
An EPD may be used for many different applications including green public procurement (GPP) and building assessment schemes. The concept of type III environmental declarations was developed to primarily be used in business-to-business communication, but their use in business-to-consumer communication is not precluded by the standards.