++++ Tax provisions ° Harmonization of laws ° Turnover tax ° Common system of value added tax ° Exemptions provided for by the Sixth Directive ° Strict interpretation ° Exemption of services linked to welfare and social security supplied by bodies governed by public law or other organizations recognized as charitable ° Services supplied by a natural person ° Excluded (Council Directive 77/388, Art. 13 A(1)(g))