Article 9 1b.

Where the Commission finds, on the basis of data published by Eurocontrol, which is the network manager for the air traffic network functions of the single European sky, that the reduction in the level of air traffic as compared to the level in the corresponding period in 2019 is persisting and is likely to persist, and also finds, on the basis of the best available scientific data, such as data from the European Centre for Disease Prevention and Control, that this situation is the result of the impact of the COVID-19 pandemic, the Commission shall adopt delegated acts in accordance with Article 25a to amend this Regulation by extending the period of 1 March 2020 to 31 December 2020 referred to in paragraph 1a of this Article accordingly.