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NRC RIN: 3150-AG98 Publication ID: Spring 2009 
Title: Modifications to Pressure-Temperature Limits and Reactor Vessel Material Surveillance Program Requirements [NRC-2008-0582] 
Abstract: The proposed rule would amend the Commission’s regulations to eliminate those requirements for pressure-temperature limits that are related to the metal temperature of the reactor pressure vessel closure head flange and vessel flange areas. The proposed rule would amend footnotes 2 and 6 to table 1 of appendix G, and simplify restructuring of the table. Also, this rulemaking would address the petition for rulemaking submitted by Westinghouse Electric Company (PRM-50-69). Part 50, appendix H, contains reactor vessel material surveillance program requirements to monitor changes in the fracture toughness properties of the reactor vessel beltline due to neutron irradiation. Data from programs established under appendix H index fracture toughness analyses contained in appendix G. 
Agency: Nuclear Regulatory Commission(NRC)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Long-Term Actions 
Major: No  Unfunded Mandates: No 
CFR Citation: 10 CFR 50   
Legal Authority: 42 USC 2201    42 USC 5841   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  To Be Determined    
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Carolyn J. Fairbanks
Nuclear Regulatory Commission
Office of Nuclear Reactor Regulation,
Washington, DC 20555-0001
Phone:301 415-6719
Email: carolyn.fairbanks@nrc.gov