What is the difference between accident management guidelines (AMG) and emergency operating procedures (EOP)?

Emergency Operating Procedures (EOPs) and Accident Management Guidelines (AMGs) are both used to guide reactor operators during abnormal events, but they differ in their scope, objectives, and the conditions under which they are applied. EOPs are designed to address a range of accidents that are within the plant's design basis. They are symptom-based procedures, meaning that they guide operators to take specific actions based on the observed plant conditions, regardless of the specific cause of the accident. The objective of EOPs is to restore the plant to a safe and stable condition and to prevent core damage. AMGs, on the other hand, are designed to address severe accidents that are beyond the plant's design basis. These are accidents where core damage has occurred or is imminent. The objective of AMGs is to mitigate the consequences of the severe accident, protect the containment, and minimize the release of radioactive materials to the environment. AMGs are more flexible than EOPs and provide operators with a wider range of options for responding to the accident. AMGs often involve strategies that are not explicitly covered in the plant's design basis, such as containment venting or external water injection. EOPs are implemented by the reactor operators in the control room, while AMGs may involve the coordination of multiple teams both inside and outside the control room. In summary, EOPs are used to prevent core damage during design-basis accidents, while AMGs are used to mitigate the consequences of severe accidents where core damage has occurred or is imminent. AMGs provide more flexible guidance and address a wider range of potential strategies than EOPs.