As a result of new internal regulations, public bodies are currently changing their structures, their strategies and the ways in which they function. We are going to analyze these transformations using the theory of social regulation and the theory of change. We have carried out two case studies (France T챕l챕com and the SNCB) in two different countries (France and Belgium). We performed semi-directive interviews of management-level and non-management level employees. Taking as our context a public body in the process of restructuring: What is the nature of the relationship between the public body, its employees and rules and regulations?