1 . MEASURES ADOPTED BY AN INSTITUTION - DIRECT EFFECT - DIRECTIVES ( EEC TREATY , ARTICLE 189 ) 2 . REFERENCES FOR A PRELIMINARY RULING - JURISDICTION OF THE COURT - LIMITS ( EEC TREATY , ARTICLE 177 ) 3 . CUSTOMS DUTY - CUSTOMS WAREHOUSES - PROCEDURE - HARMONIZATION - ARTICLE 10 ( 2 ) ( D ) OF DIRECTIVE NO 69/74 - DIRECT EFFECT 4 . CUSTOMS DUTY - VALUE FOR CUSTOMS PURPOSES - CALCULATION - PRICE TO BE TAKEN AS BASIS - COSTS OF WAREHOUSING AND OF PRESERVING THE GOODS WHILST IN WAREHOUSES - EXCLUSION ( DIRECTIVE NO 69/74 , ARTICLE 10 ( 2 ) ( D ))