Considering their limited administrative capacity, EU regulatory agencies entrusted with fostering co-ordination of regulatory practices across the EU are presented with an overwhelming task – a task that appears manageable only with the support and goodwill of national regulators. Against this backdrop, Eva Heims writes that “it remains a critical puzzle for students of public administration and EU governance to understand why some national regulators are willing to engage with the work of EU bodies and to co-ordinate their practices with sister authorities, whilst others are not.” In her article “Regulatory co-ordination in the EU: a cross-sector comparison” published in the Journal of European Public Policy, she compares attitudes among British and German maritime safety and food control authorities towards EU regulatory co-ordination. Her analysis reveals that while British and German maritime safety authorities are apprehensive of closer ties with the International Maritime Organization, fearing inroads into their traditional turfs, food safety authorities in both countries embrace EU regulatory co-ordination to stay atop of complex systems of domestic local authorities. Eva’s contribution shows that “it it is useful to take into account the positions which national authorities hold in constellations of bureaucratic actors beyond the EU context in order to understand their attitudes to EU co-ordination.”