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Emergency Status Form," 9/81 ( DC0042 5 XXIV Get-h5 4/6 .SIGNIFICANT EVENT / UNUSUAL EVENT NOTIFICATIONS '\\ CONTACT: NUMBER TIME NOTIFIE C-1. NRC OPERATIONS

Byron Unit 2 EVENT DATE: 01/30/12 DETERMINISTIC CRITERIA EVALUATION DATE: 02/02/12 Brief Description of the Significant Operational Event or Degraded Condition:

Enforcement Action INPO Event Report Level 1 (IER 1) INPO Event Report Level 2 (IER 2) INPO Event Report Level 3 (IER 3) INPO Event Report Level 4 (IER 4)

e date: 2 December 1998 Title: Notification of Significant Licensee Meeting 98-91 with Util on 981216 to Discuss Events During Reactor Coolant Sys Decontamination

not function as required and, as a result of the failure, a significant event or an event that resulted in an act of radiological sabotage occurred. NRC

verify in the notification that submittals for such actions have been or will be made to NRC and shall identify them. A copy of the notification shall be retained

of a Licensee Event Report for a period of three years following issuance of the report. For events which do not require a Licensee Event Report, the licensee

submit a Licensee Event Report (LER) for any event of the type described in this paragraph within 60 days after the discovery of the event. In the case of

(e.g., significant portion of control room indication, Emergency Notification System, or offsite notification system). (c) Followup notification. With respect

One (1) Hour Notification Following Significant Events Notification.chall be made to the NRC Operations Center via the Emergency Notification System within

concern are those that provide a risk significant or risk relevant mitigating function in response to an initiating event. Normally those SSCs that are in the

Federal Register notices. In either event, it will not make and will not publish a final determination on no significant hazards consideration, unless it

involves no significant hazards consideration, if operation of the facility in accordance with the proposed amendment would not: (1) Involve a significant increase

Revision 2, "Physical Security Event Notifications, Reports, and Records," include: 4-hour vs. 15-minute notification requirement: Section 73.1200(e)(1)(iii)

the event or condition through an event notification under 10 CFR 50.72(b)(3). Sections 50.72(a)(1)(ii) and 50.73(a)(1) require event notifications and

Revision 2, "Physical Security Event Notifications, Reports, and Records," include: 4-hour vs. 15-minute notification requirement: Section 73.1200(e)(1)(iii)

provided that (i) there is no significant hazards consideration; (ii) there is no significant change in the types or significant increase in the amounts of

Checks, and Security Event Notifications Implementation 1. Enhanced Weapons, Firearms Background Checks, and Security Event Notifications, 88 FR 15864, dated

the licensees emergency organization and the means for notification of such individuals in the event of an emergency. The requirements of 10 CFR 50.47(b)(1)

provided that (i) there is no significant hazards consideration; (ii) there is no significant change in the types or significant increase in the amounts of