Article 2 - Commission Implementing Decision (EU) 2018/1782 of 15 November 2018 allowing targets in the key performance area of cost-efficiency for the years 2018 and 2019 for air navigation services of Romania and Portugal to be revised in accordance with Article 17(1) of Regulation (EU) No 390/2013 (notified under document C(2018) 7486) (only the Romanian and Portuguese texts are authentic) (Text with EEA relevance)