1 . MEASURES ADOPTED BY THE INSTITUTIONS - APPLICATION RATIONE TEMPORIS - PRINCIPLE THAT THEY MAY NOT BE RETROACTIVE - EXCEPTIONS - CONDITIONS 2 . AGRICULTURE - MONETARY COMPENSATORY AMOUNTS - APPLICATION TO EXPORTS OF MILK PRODUCTS FROM THE UNITED KINGDOM BETWEEN 1 AND 25 APRIL 1980 - REGULATION NO 1011/80 - RETROACTIVE CONFIRMATION - LIMITS - RIGHTS ACQUIRED BY OPERATORS ( COUNCIL REGULATION NO 1011/80 , ARTICLE 1 )