Document: NRC Regulatory Guide
Document ID: b647b09e-9948-474b-8b4a-d2e08837ffa5
Document Type: regulatory_guide
Title: Guidance on Making Changes to Emergency Plans for Nuclear Power Reactors (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1505/ML15054A370.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.219
CFR Part: 
CFR Title: 

Content:
ff augmentation times for their ERFs as part of their compliance with the planning standard in 10 CFR 50.47(b)(2). Licensees’ initial emergency notifications must contain a PAR. Because the licensee must make the notification within 15 minutes of the emergency declaration, it must also deliver a PAR within 15 minutes. Proposed changes that could delay emergency declarations, notifications, or PARs may reduce the effectiveness of the emergency plan in that subsequent emergency response actions may not be timely and emergency response personnel, facilities, and equipment may not be in position if it becomes necessary to carry out measures to protect the public health and safety. Generally, the licensee should view any change that could delay an activity or relax a timeliness criterion for the activity as a potential reduction in effectiveness and should evaluate it accordingly. This evaluation would include any change that modifies how the DG-1324, Page 10 timeliness criterion is evaluated (e.g., “when the clock starts and stops”). For example, the purpose of the emergency response organization (ERO) activation is to augment the onshift staff and relieve it of those functions assigned to the technical support center (TSC), the operations support center (OSC), and the emergency operations facility (EOF). The ERO activation is not complete until the ERO is actively performing those functions at the TSC, OSC, and EOF, or is ready to perform the functions but awaiting turnover from the control room; actuating a “clock stop” before this would be premature. b. The capability to complete an activity within the specified timeframe depends on several factors, including the availability of adequate qualified personnel to perform the activity; the number of multiple duties assigned to these personnel; augmentation time by off shift personnel; and sufficient procedures, tools, instrumentation, equipment, and other material necessary to complete the activity. The