++++ 1 . Approximation of laws - Procedures for the award of public works contracts - Directive 71/305 - Award of contracts - Abnormally low tenders - Automatic disqualification - Not permissible - Obligation to conduct an examination procedure - Tenders subject to examination - Obligations of national judicial and administrative authorities ( Council Directive 71/305/EEC, Art . 29(5 ) ) 2 . Measures adopted by the institutions - Directives - Direct effect - Conditions - Implications ( EEC Treaty, Art . 189, third paragraph )