| Notification of Unusual Event is the lowest class and least serious. It means a minor problem has taken place. No radioactive release is expected. Federal and state officials have been notified. The public does not have to do anything. |
| Alert is the second-lowest classification. A problem at the plant could result in a lower level of safety. Officials have been notified and asked to stand by. Public action is unlikely. NPPD Technical Support Center, Operational Support Center, and Emergency Operations Facility are activated. Other NPPD centers and facilities may be placed on standby status. |
| Site Area Emergency is the second most serious of the four classes. Conditions at the nuclear plant COULD result in the failure of a safety system. Small amounts of radioactivity COULD be released into the immediate area around the plant. The public should be alert to sirens or EBS radios which would be activated if public special action is required. The public should listen to radio and TV for instructions and information. Emergency response facilities are staffed. State and federal officials are involved in monitoring the situation. |
| General Emergency is the most serious classification and indicates plant conditions COULD result in radioactive releases outside the plant boundary. State and federal officials are involved in dealing with the situation. The public should be alert to broadcast information concerning possible protective action, such as in-house shelter. If action is required, sirens will sound and EBS radios will inform the public about protective actions. |
