http://www.globalreporting.org 11DISCLOSING SUSTAINABILITY: METHODOLOGICAL NOTE The Sustainability Report, enclosing a Summary Note, following its approval by the Board of Directors, is available to the supervisory body and submitted for assurance by the independent auditor, with which Acea has no joint interests or other connections and appointed in order to assess the compliance thereof with Legislative Decree no. 254/2016 and its consistency with the implemented reporting standards6 (see Opinion Letter of the independent auditor).