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2.2.9 In general terms, there are three levels of action decision-makers can choose in pursuing the safety recommendations from analyses such as those exemplified in the previous paragraphs:12
The first level of action is to eliminate the hazard, thereby preventing a future accident.
The second level of action is to accept the hazard identified and adjust the system to tolerate human error and to reduce the possibility of an occurrence.
The third level of action involves both accepting that the hazard can be neither eliminated (level one) nor controlled (level two) and teaching operational personnel to live with it.
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