Abstract
This paper presents a review, conducted by the ethics working party of the European Forum for Good Clinical Practice, of the structures and functions of research ethics committees across the member states of the EU. The findings demonstrate widespread differences, and further working groups have been established to develop thinking across Europe, in respect of the training of REC members, ethics committee quality assurance and the involvement of vulnerable subjects in research. In practical terms the differences do not matter, but they should be recognized. The review itself is considered a dynamic document and will be updated every six months.