In steady-state operation, nuclear reactors operate at exact criticality. Failure mode criticality assessment may be qualitative or quantitative. Accidental exposure may be the result of a criticality or radiotherapy accident. ERP Security scanners produce reports with the vulnerabilities listed according to their criticality. Hence organization should move through the principle of criticality and principle of scarcity. Levels of criticality are assigned to the consequences of failure. Two dollars is defined as the threshold between delayed and prompt criticality. This type of test has resulted in several criticality accidents. Task selection depends on the criticality of the system as well as cost. He was the first known fatality caused by a criticality accident. Various attempts at the assessment of this criticality have taken place over recent years. This resulted in a criticality accident. The event was classified a criticality accident. It was classified a serious criticality accident. The plants are listed in order of their initial criticality.