Document: NRC Regulatory Guide
Document ID: c7a40fcc-fc9d-4eb2-ad86-f9f5b0f04c82
Document Type: regulatory_guide
Title: Plant-Specific, Risk-Informed Decisionmaking:  Technical Specifications (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1920/ML19206A489.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.177
CFR Part: 
CFR Title: 

Content:
in risk, the increases should be small and consistent with the intent of the Commission’s policy statement on safety goals for the operations of nuclear power plants. • Principle 5: The impact of the proposed licensing basis change should be monitored using performance measurement strategies. RG 1.174 identifies a four-element approach to evaluating proposed licensing basis changes. This section addresses the applicability of these key principles and elements to TS changes. 1. Element 1: Define the Proposed Change 1.1 Reason for Proposed Change The submittals should state the reasons for requesting the TS change or changes, along with information that demonstrates that the extent of the change is needed. Generally, acceptable reasons for requesting TS changes fall into one or more of the categories below. RG 1.174, Section C.1, provides additional guidance on defining the proposed change. 1.1.1 Improvement in Operational Safety A licensee may request the TS change to improve operational safety (i.e., a reduction in the plant risk or a reduction in occupational exposure of plant personnel in complying with the requirements). 1.1.2 Consistency of Risk Basis in Regulatory Requirements The TS change can be supported based on its risk implications. TS requirements can be changed to reflect improved design features in a plant or to reflect equipment reliability improvements that make a previous requirement unnecessarily stringent or ineffective. The TS may also be changed to establish consistently based requirements across the industry or across an industry group. The licensee must ensure that the risk resulting from the change remains acceptable. DG-1287, Page 8 1.1.3 Reduce Unnecessary Burdens A licensee may request the TS change to reduce unnecessary burdens in complying with current TS requirements based on the operating history of the plant or industry in general. For example, in specific instances, the repair time needed may be longer than the CT defined in the