(7)It is appropriate to establish the position to be taken on behalf of the Union within the ICAO Council, as Amendment 20, once adopted, will be binding under international law in accordance with Article 90, letter a) of the Chicago Convention, and capable of decisively influencing the content of Union law, in particular Regulation (EU) No 996/2010. The scope of this Decision should be limited to the content of Amendment 20, insofar as that content falls within an area which is already largely covered by EU common rules. This Decision should not affect the distribution of competences between the Union and the Member States in the field of aviation.