Voermans current research focuses on Dutch and European constitutional law, with a particular interest in the Dutch and European legislature. Focal points in his recent research are: quality of EC legislation, impact assessment, legislative procedures (with a special interest in (European) Parliament), transparency, institutional balance, decentralization, deregulation, simplification, red tape reduction, transposition and implementation of EU legislation, compliance and enforcement, drafting techniques, and legislative evaluation).
Voermans is one of the three directors of the Leiden Research Profile "Political Legitimacy".
- Delegation is a Matter of Confidence: The New Delegation System Under the Lisbon Treaty (2011)
- Concern about the quality of EU legislation: what kind of problem, by what kind of standards? (2009)
- Constitutional Reserves and Covert Constitutions (2009)
- The Transposition of EC Directives; A Comparative Study of Instruments an Processes in Six Member States (2006)