We discuss Culture and High Reliability Organizing (HRO). While not universally known within management and organization studies, High Reliability is concerned with formal structure and process, as well as informal commitment, motivation and trust. HRO describes a subset of hazardous organizations that enjoy a high level of safety over long periods of time. What distinguishes types of high-risk systems is the source of risk, whether it is the technical or social factors that the system must control or whether the environment, itself, constantly changes.