(...) This chapter analyses the origins of the risk assessment-risk management framework, which is commonly traced to a specific report: risk assessment in the federal government: managing the process (RAFG) produced by th USA national Research Council (NRC) (NRC, 1983). The chapter has on key question in mind: what kind of work underpins the construction and institutionalization of a framework? This question is motivated by the particular properties of a management framework.(...)