Commission Regulation (EC) No 2250/2004 of 27 December 2004 amending Regulations (EEC) No 429/90, (EC) No 2571/97, (EC) No 174/1999, (EC) No 2771/1999, (EC) No 2799/1999, (EC) No 214/2001, (EC) No 580/2004, (EC) No 581/2004 and (EC) No 582/2004 as regards the time limits for the submission of tenders and for the communication to the Commission