++++ 1 . Measures adopted by the Community institutions - Directives - Implementation by Member States - Transposition without the adoption of legislation - Conditions - Existence of national provisions ensuring full application of the directive ( EEC Treaty, Art . 189, third paragraph ) 2 . Social policy - Approximation of laws - Protection of workers in the event of employer' s insolvency - Directive 80/987 - Implementation by Member States - Incomplete implementation as regards the persons protected and the guarantees provided - Not permissible ( Council Directive 80/987 )