Article 19 3.

As regards the environmental compatibility of aircraft referred to in points (a) and (b) of Article 2(1), other than unmanned aircraft, and their engines, propellers, parts and non-installed equipment, the Commission is empowered to adopt delegated acts in accordance with Article 128, to amend the references to the provisions of the Chicago Convention referred to in the first subparagraph of Article 9(2), in order to update them in light of subsequent amendments to those provisions which enter into force after 4 July 2018 and which become applicable in all Member States, in so far as such adaptations do not broaden the scope of this Regulation.