National and supranational implementation in the EU: differentiated or uniform?

Abstract

Regulatory decisions on operational details are usually required to implement general legislation (Pressman & Wildavsky 1973). EU legislation has traditionally been implemented by the member states that may ‘customize’ regulatory decisions to the national context (Thomann, 2015). To the extent that decisions are tailored to specific national contexts, differentiated patterns of EU implementation may ensue. However, EU-level actors such as the Commission, EU agencies and regulatory networks have become more involved in EU implementation (Scholten 2017), but we know less about what roles they play in implementation and enforcement of EU rules. Involvement of EU-level actors in processes of regulatory decision-making has been associated with efforts at making EU implementation more uniform (Egeberg 2006). This panel examines EU-level and national decision-making that occurs within the implementation stage, including transposition and enforcement and whether this results in uniform or differentiated implementation. It explores key issues of EU regulatory governance via papers on national customization and supranational engagement during EU implementation.

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