1 . STATE MONOPOLIES OF A COMMERCIAL CHARACTER - DUTY TO ADJUST - SCOPE ( EEC TREATY , ART . 37 ) 2 . FREE MOVEMENT OF GOODS - QUANTITATIVE RESTRICTIONS - MEASURES HAVING EQUIVALENT EFFECT - PRICE CONTROLS - PERMISSIBILITY - CONDITIONS ( EEC TREATY , ART . 30 ) 3 . STATE MONOPOLIES OF A COMMERCIAL CHARACTER - DUTY TO ADJUST - SCOPE - MONOPOLY REQUIRING OBSERVANCE OF A UNIFORM TRADING MARGIN FOR RETAIL SALES ON THE DOMESTIC MARKET - PRODUCTS OF THE STATE MONOPOLY NOT SUBJECTED TO THAT REQUIREMENT ON FOREIGN MARKETS - SITUATION ARISING FROM DISPARITIES BETWEEN NATIONAL LAWS - DISCRIMINATION - NONE ( EEC TREATY , ART . 37 )