Document: NRC Regulatory Guide
Document ID: 5f4d6577-6c2a-473a-9a76-4033a95dba4c
Document Type: regulatory_guide
Title: Radiation Embrittlement of Reactor Vessel Materials (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0037/ML003740284.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.99
CFR Part: 
CFR Title: 

Content:
g criterion given in the rule. The information on which this Revision 2 is based may also affect the basis for the PTS rule. The staff is presently considering whether to propose a change to § 50.61. The Advisory Committee on Reactor Safeguards has been con- sulted concerning this guide and has concurred in the regulatory position. Any information collection activities mentioned in this regulatory guide are contained as requirements in 10 CFR Part 50, which pro- vides the regulatory basis for this guide. The information collec- USN RC REGULATORY GUIDES Regulatory Guides are Issued to describe and make available to the public methods acceptable to the N RC staff of implementing specific parts of the Commission's regulations, to delineate tech- niques used bY the staff In evaluating specific problems or postu- lated accidents, or to provide guidance to applicants. Regulatory Guides are not substitutes for regulations, and compliance with them Is not required. Methods and solutions different from those set out in the guides will be acceptable if they provide a basis for the findings requisite to the Issuance or continuance of a permit or license by the commission. This guide was issued after consideration of comments received from the public. Comments and suggestions for Improvements In these guides are encouraged at all times, and guides will be revised, as appropriate, to accommodate comments and to reflect new Informa- tion or experience. Written comments may be submitted to the Rules and Procedures .Branch, DRR, ADM, U.S. Nuclear Regulatory Commission, Washington, DC 20555. tion requirements in 10 CFR Part 50 have been cleared under 0MB Clearance No. 3150-0011. B. DISCUSSION Some NRC requirements that necessitate calculation of radia- tion embrittlement are: 1. Paragraph V .A of Appendix G requires the effects of neutron radiation to be predicted from the results of pertinent radiation effects studies. This guide provides such results in the form of calculative