AAOM Handbook

High –  Significant un-containable safety or environmental threat, or  Significant un-recoverable process throughput or quality reduction o Un-containable means that there is no practical way to contain exposure to a threat e.g. use temporary measures such as the installation of barricades, diverting spillage into sumps, drawing from or building stockpiles, subcontracting alternate suppliers for goods or services etc. o Un-recoverable means that there is no alternate equipment, schedule time, operating rate or alternate suppliers etc that will allow catch up to schedule. Moderate –  Less than significant un-containable safety or environmental threat, or  Less than significant un-recoverable process throughput or quality reduction, or  Containable safety or environmental threat, or  Recoverable process throughput or quality reduction Low –  All other. What constitutes a significant potential impact may vary between business areas and will need to be defined on a case by case basis. Safety and environmental impacts, and major operational disruptions may be classified based on the Company Risk Ranking matrix. For operational disruptions that fall below this level, a portion of the range of variation evident in the Control Chart/Capability Histogram of the performance (e.g. more or less than the value equal to 0.5 Sigma of the distribution) may be used to quantify what is considered significant or not. Time A Work Request shall be raised as soon as necessary or practical after the need for the work is identified. Resources Completion of this task is the accountability of the role nominated on the configured Work Approval flowchart.