Philipp Kiiver is an associate professor of European and comparative constitutional law at Maastricht University. He obtained his law degree (2003) and his PhD (2005) from Maastricht, and specializes in international parliamentary studies. He is the co-author of an introduction to comparative constitutional law and has published several books and articles on the role of national parliaments in the European Union.

• 1. Introduction 2. National Parliaments in the European Union 3.The Institutional and Procedural Logic of the Early Warning System 4. The Material Scope of the EWS: Subsidiarity and Other Criteria 5. The EWS as an Accountability Mechanism 6. The EWS as Legal Review: National Parliaments as Councils of State 7. National Parliaments in the Constitutional Reality of the Early Warning System

Philipp Kiiver is an associate professor of European and comparative constitutional law at Maastricht University. He obtained his law degree (2003) and his PhD (2005) from Maastricht, and specializes in international parliamentary studies. He is the co-author of an introduction to comparative constitutional law and has published several books and articles on the role of national parliaments in the European Union.

• 1. Introduction 2. National Parliaments in the European Union 3.The Institutional and Procedural Logic of the Early Warning System 4. The Material Scope of the EWS: Subsidiarity and Other Criteria 5. The EWS as an Accountability Mechanism 6. The EWS as Legal Review: National Parliaments as Councils of State 7. National Parliaments in the Constitutional Reality of the Early Warning System