++++ 1.References for a preliminary ruling - Jurisdiction of the Court - Reference for interpretation made under the ECSC Treaty - Included ( ECSC Treaty, Arts 31 and 41; EEC Treaty, Arts 164 and 177; EAEC Treaty, Arts 146 and 150 ) 2.Measures adopted by the institutions - Directives or ECSC recommendations - Direct effect - Conditions - Limits - Whether possible to rely on a directive or an ECSC recommendation against an individual - Not possible ( ECSC Treaty, third paragraph of Art . 14; EEC Treaty, third paragraph of Art . 189 ) 3.ECSC - Production levies - Insolvency of debtor undertaking - Preferential status conferred on Community levies - Recommendation 86/198 - Failure to comply with the mandatory time-limit for transposition - Direct effect - Limits ( Recommendation 86/198/ECSC, Art . 4, first paragraph ) 4.Community law - Principles - Protection of legitimate expectations -Limits - Application of new rules to the future effects of situations which arose under earlier rules