(15)In order to allow for a limited flexibility, the power to adopt acts in accordance with Article 290 TFEU should be delegated to the Commission in respect of a possible extension of the deadlines set out in points (a), (b) and (c) of the first subparagraph of Article 2(1), and amendments to the payment schedule for the months after August 2019. It is of particular importance that the Commission carry out appropriate consultations during its preparatory work, including at expert level, and that those consultations be conducted in accordance with the principles laid down in the Interinstitutional Agreement of 13 April 2016 on Better Law-Makingnote. In particular, to ensure equal participation in the preparation of delegated acts, the European Parliament and the Council receive all documents at the same time as Member States' experts, and their experts systematically have access to meetings of Commission expert groups dealing with the preparation of delegated acts. Where, in the case of a risk of a serious disruption of the implementation and financing of the Union budget in 2019, imperative grounds of urgency so require, the delegated act should enter into force without delay and should apply as long as no objection is expressed by the European Parliament or the Council.