++++ 1 . PRELIMINARY RULINGS - REFERENCE TO THE COURT - NEED FOR A PRELIMINARY RULING WITH REGARD TO PROCEEDINGS PENDING BEFORE THE COURT OR TRIBUNAL MAKING THE REFERENCE - COURT OR TRIBUNAL WHICH HAS MADE AN ORDER IN INTERLOCUTORY PROCEEDINGS - POWER TO MAKE A REFERENCE - CONDITION - NON-EXHAUSTION OF THE JURISDICTION OF THE COURT OR TRIBUNAL ( EEC TREATY, ART . 177 ) 2 . AGRICULTURE - MONETARY COMPENSATORY AMOUNTS - ADVANCE FIXING - ADJUSTMENT FOLLOWING AN ALTERATION IN THE REPRESENATIVE RATES - APPLICATION TO REQUESTS FOR ADVANCE FIXING LODGED BEFORE THE ENTRY INTO FORCE OF THE NEW RATES - PERMISSIBILITY - PRINCIPLES OF THE PROTECTION OF LEGITIMATE EXPECTATIONS AND LEGAL CERTAINTY - INFRINGEMENT - NONE ( COMMISSION REGULATIONS NO 1160/82, ART . 7 ( 1 ), AND NO 1245/83, ART . 4 AND ANNEX IVA ) 3 . AGRICULTURE - MONETARY MEASURES - ALTERATION IN THE REPRESENTATIVE RATES - EFFECT ON ADVANCE FIXINGS - CANCELLATION ON APPLICATION BY A TRADER - CONDITIONS - EXHAUSTIVE NATURE OF THE COUNCIL' S PROVISIONS - COMMISSION REGULATION LAYING DOWN DETAILED RULES OF IMPLEMENTATION IMPOSING AN ADDITIONAL CONDITION - UNLAWFUL ( COUNCIL REGULATIONS NO 1134/68, SECOND SUBPARAGRAPH OF ART . 4 ( 1 ), AND NO 1223/83, ART . 4 ( 2 ); COMMISSION REGULATION NO 1244/83 )