(21)In accordance with the Declaration (No 39) on Article 290 of the Treaty on the Functioning of the European Union (TFEU), annexed to the Final Act of the Intergovernmental Conference which adopted the Treaty of Lisbon, the elaboration of regulatory technical standards requires assistance of technical expertise in a form which is specific to the financial services area. It is necessary to allow the Authority to provide such expertise also on standards or parts of standards that are not based on a draft technical standard that it has elaborated.