1 . FREE MOVEMENT OF GOODS - QUANTITATIVE RESTRICTIONS - MEASURES HAVING EQUIVALENT EFFECT - CONCEPT - ACTUAL RESTRICTION OF IMPORTS - NOT A NECESSARY CONDITION ( EEC TREATY , ART . 30 ) 2 . FREE MOVEMENT OF GOODS - DEROGATIONS - CONDITIONS - RECOURSE TO LESS RESTRICTIVE MEASURES ( EEC TREATY , ART . 36 ) 3 . BALANCE OF PAYMENTS - LIBERALIZATION OF PAYMENTS - TRANSFERS OF FOREIGN CURRENCY IN CONNECTION WITH TRADE IN GOODS - RESTRICTIONS - ABOLITION - MEMBER STATES ' CONTROL MEASURES - PERMISSIBILITY - LIMITS ( EEC TREATY , ART . 106 )