Commission Regulation (EC) No 2133/2001 of 30 October 2001 opening and providing for the administration of certain Community tariff quotas and tariff ceilings in the cereals sector and repealing Regulations (EC) No 1897/94, (EC) No 306/96, (EC) No 1827/96, (EC) No 1970/96, (EC) No 1405/97, (EC) No 1406/97, (EC) No 2492/98, (EC) No 2809/98 and (EC) No 778/1999