In the context of a multitude of due diligence procedures, Environmental Due Diligence (EDD) is a technical investigation and assessment process designed to support commercial transactions involving “assets”. It aims to identify, analyse and quantify potential liabilities, risks and environmental costs associated with the target's current and past activities, which may have or may have had a potential impact on the environment, and its compliance with current environmental legislation, in order to obtain a comprehensive and impartial overview summarising all environmentally relevant information associated with the target, facilitating the definition of priorities for action and investments necessary to ensure regulatory compliance and improve environmental performance.