1 . FREE MOVEMENT OF GOODS - QUANTITATIVE RESTRICTIONS - MEASURES HAVING EQUIVALENT EFFECT - RULES ON THE PRICE OF FUEL - PROHIBITION - CRITERIA ( EEC TREATY , ART . 30 ) 2 . FREE MOVEMENT OF GOODS - DEROGATIONS - PUBLIC POLICY - RULES ON THE PRICE OF FUEL - JUSTIFICATION - NONE ( EEC TREATY , ART . 36 )