THE LIGHT OF THE IMPORTANCE OF THE ACTIVITIES IN QUESTION , THAT FACT RENDERS THE CHARGE UNLAWFUL AND MUST ENTAIL TOTAL OR PARTIAL EXEMPTION .
( D)IN THE SAME CIRCUMSTANCES , IT IS ALSO FOR THE NATIONAL COURT TO DETERMINE , IN ACCORDANCE WITH ITS NATIONAL LAW , WHETHER AND TO WHAT EXTENT THE CHARGE MUST BE REFUNDED AND WHETHER AND TO WHAT EXTENT SUCH ENTITLEMENT TO A REFUND IS OFFSET BY THE ADVANTAGES ACCRUING DIRECTLY TO THE PERSON CONCERNED AS A RESULT OF THE ACTIVITIES OF THE SAID BODY .
4.AS REGARDS PRODUCTS SUBJECT TO THE COMMON ORGANIZATION OF THE AGRICULTURAL MARKETS AT THE TIME OF THE UNITED KINGDOM ' S ACCESSION , THE PROVISIONS OF THE TREATY PROHIBITING MEASURES HAVING AN EFFECT EQUIVALENT TO QUANTITATIVE RESTRICTIONS BECAME APPLICABLE IN THE UNITED KINGDOM ON 1 FEBRUARY 1973 IN ACCORDANCE WITH ARTICLE 60 ( 1 ) OF THE ACT OF ACCESSION .