The concept of high reliability organizations rests very much on the theory that accidents can be prevented through good organizational design and management/leadership.[1] One of the most comprehensive studies undertaken in more recent years defining high reliability organizations is the HSE Laboratory (2011) study “High Reliability Organizations – A Review of the Literature”. In this work the definitions start from the context of the two (competing) prominent schools of thought that seek to explain accidents in complex, high hazard organizations: Normal Accident Theory (NAT) and High Reliability Organization Theory (HROT).[2]