++++ 1 . Action for annulment - Natural or legal persons - Acts of direct and individual concern to them - Regulation fixing the percentage reduction of quantities for which applications for import licences have been made during a certain period ( EEC Treaty, Art . 173, second paragraph, and Art . 189, second paragraph; Commission Regulation No 2806/87 ) 2 . Agriculture - Common organization of the markets - Beef and veal - High-quality fresh, chilled or frozen beef and veal - System of import licences - Applications for licences exceeding the quantity available - Application of a uniform percentage reduction - Introduction, for the purposes of dealing with current applications, of a quantitative ceiling on applications to be satisfied after reduction - Commission' s own powers - Breach of the principle of legal certainty - None ( Commission Regulation No 2377/80, as amended by Regulation No 3578/82, and No 2806/87, Art . 1, second paragraph )