++++ 1 . Action against a Member State for failure to fulfil its obligations - Objective nature - Objectives pursued by the Commision - Not to be considered ( EEC Treaty, Art . 169 ) 2 . Tax provisions - Harmonization of legislation - Turnover tax - Common system of value-added tax - Reduced rates and exemptions retained on a transitional basis for "clearly defined social reasons and for the benefit of the final consumer" - Concept ( Council Directive 67/228, Art . 17, last indent, and Council Directive 77/388, Art . 28 ( 2 ) )