83In its application, the Italian Republic complains, in substance, that there is no legal basis for the application by the Commission of a flat-rate financial correction in the event of irregularity in the implementation of a scheme relating to assigned revenue and that it therefore acted in arbitrary fashion, infringing both the provisions of Article 11 of Regulation No 885/2003 and the guidelines contained in Document No VI/5330/97 as well as the principle of proportionality. In support of those three complaints which make up its third plea, the Italian Republic relies, in substance, on the following arguments.