Document: NRC Regulatory Guide
Document ID: b143ccef-ed08-482d-bc4b-b4e012328090
Document Type: regulatory_guide
Title: Applications for Nuclear Power Plants (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1523/ML15233A056.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.206
CFR Part: 
CFR Title: 

Content:
le, the scope of SSCs falling within the definition of construction was derived from the scope of SSCs that are included in the program for monitoring the effectiveness of maintenance at nuclear power plants, as defined in 10 CFR 50.65(b), and supplemented with additional criteria (10 CFR 50.10(a)(1)(v–vii)). The supplementary information published with the 2007 final LWA rule contained a discussion of the definition of construction and guidance on the delineation of preconstruction and construction activities. As discussed in the supplementary information, the NRC selected the criteria used in the definition of construction to take advantage of the work done during the development and implementation of the maintenance rule (10 CFR 50.65, “Requirements for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants”). Like the LWA rule, the maintenance rule defines a scope of SSCs that have some nexus to radiological health and safety (safety significance). The NRC selected the maintenance rule criteria for use in the definition of construction, in part because the criteria are well understood and there is good agreement on their implementation. In addition, the NRC has prepared guidance for implementing the maintenance rule in RG 1.160, “Monitoring the Effectiveness of Maintenance at Nuclear Power Plants,” issued March 1997, and that guidance has been tested. This RG endorses industry guidance provided in Revision 2 of NUMARC 93-01, “Industry Guideline for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants,” issued April 1996. For these reasons, the NRC has decided that the maintenance rule guidance can also be applied to determinations of SSCs that are within the scope of the definition of construction. Also, the NRC recognizes that determinations of which SSCs fall within the definition of construction will depend on the design of the facility. In determining whether SSCs fall within the criteria in 10 CFR