( 3 ) For reasons of simplification this quota should be opened on a pluriannual basis for periods of 12 months each; however , the last quota period might be shorter than 12 months according to the actual date of entry into force of the agreement; in that event it is appropriate to authorise the Commission to adjust the available quantity under the tariff quota accordingly;. This sentence is hard to understand. A simpler version with equivalent meaning is the following:
( 3 ) For the sake of convenience , this quota should be opened for several years , each time for a period of 12 months; the last quota period could be less than 12 months due to the actual date of entry into force of the agreement . To this end , it is appropriate to authorize the Commission to adjust the quantity available under the tariff quota accordingly .