This paper examines the Europeanisation of central government in four Central and Eastern European countries (CEECs): Estonia Latvia, Poland and Slovakia. It replicates a study by Mastenbroek and Princen (2010) on the Netherlands to compare Europeanisation in old and new member states. Using a survey of ministerial civil servants, it finds that central government is subject to a much larger scope of Europeanisation, indicating the over-Europeanisation of central government compared to old member states. In particular, more civil servants deal with EU affairs and they spend more time on EU issues. At the same time, there are signs of convergence, in that patterns of Europeanisation are similar among CEECs and between them and old member states. In particular, some ministries are more affected by the EU, only a small proportion of civil servants works full-time on EU issues and routinely engages in activities that 'project' national policies at EU level. This paper contributes to the emerging body of literature that seeks to bridge the study of the Europeanisation of government in old and new member states. Specifically, it replicates research on the Europeanisation of central government that t'Hart et al (2007) and Mastenbroek and Princen (2010) conducted for the Netherlands in four CEECs that joined the EU in 2004. The paper explicitly follows the approach proposed by Mastenbroek and Princen (2010). Accordingly, it examines the extent to which the EU affects the (i) structure and (ii) culture of governmental organisations and (iii) the activities of civil servants employed at central government level. The empirical analysis is based on individual-level data from a survey of civil servants who are employed in central government ministries.In order to compare the CEECs to existing research on the Netherlands, the paper distinguishes the scope of Europeanisation and the pattern of Europeanisation. The former refers to the extent to which the EU has been incorporated into the structure, culture and activities of central government organisations and staff. The latter addresses the internal order of the three dimensions of Europeanisation such as the distinction of an 'inner' and 'outer core' of ministries dealing with EU affairs (Laffan 2006(Laffan , 2007 and the relative importance of specific types of EU-related activities in the day-to-day work of civil servants such as the distinction of 'projection' and 'receptionrelated' activities (Bulmer/Burch 2009).Empirically, the paper concentrates on exploring the data on the Europeanisation of central government in four CEECs: Estonia, Latvia, Poland and Slovakia. It presents three core findings. First, central government in CEECs is over-Europeanised in that the scope of Europeanisation is far more encompassing compared to the old member states. Second, patterns of Europeanisation in CEECs are remarkably similar along all three