Judgment_paragraph 31 · Impresa di Costruzioni Ing. E. Mantovani SpA and Guerrato SpA v Provincia autonoma di Bolzano and Others (C-178/16)

31In accordance with settled case-law, Article 45(2) of Directive 2004/18 does not provide for uniform application at EU level of the grounds of exclusion it mentions, since the Member States may choose not to apply those grounds of exclusion, or to incorporate them into national law with varying degrees of rigour according to legal, economic or social considerations prevailing at national level. In that context, Member States have the power to make the criteria laid down in Article 45(2) less onerous or more flexible (judgment of 14 December 2016, Connexxion Taxi Services, C‑171/15, EU:C:2016:948, paragraph 29 and the case-law cited).