Article 3: Addressees and publication - Commission Decision (EU) 2016/2357 of 19 December 2016 regarding the lack of effective compliance with Regulation (EC) No 216/2008 of the European Parliament and of the Council and its implementing rules in respect of certificates issued by the Hellenic Aviation Training Academy (HATA), and Part-66 licenses issued on the basis thereof (notified under document C(2016) 8645)