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NRC | RIN: 3150-AI01 | Publication ID: Fall 2008 |
Title: Amend Fracture Toughness Requirements Against Pressurized Thermal Shock Event | |
Abstract: The proposed rule would amend the Commission's regulations that protect against brittle fracture of reactor vessels during severe cooldown events. The existing regulations establish screening limits that were developed based on what NRC believed to be a conservative probabilistic fracture mechanics analysis. Several licensees will exceed the screening limits in the current rule during their license renewal periods. The proposed rule would provide alternate fracture toughness requirements which reflect an updated technical basis. | |
Agency: Nuclear Regulatory Commission(NRC) | Priority: Substantive, Nonsignificant |
RIN Status: Previously published in the Unified Agenda | Agenda Stage of Rulemaking: Final Rule Stage |
Major: No | Unfunded Mandates: No |
CFR Citation: 10 CFR 50 | |
Legal Authority: 42 USC 2201 42 USC 5841 |
Legal Deadline:
None |
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Timetable:
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Regulatory Flexibility Analysis Required: No | Government Levels Affected: None |
Small Entities Affected: No | |
Included in the Regulatory Plan: No | |
RIN Data Printed in the FR: No | |
Agency Contact: Veronica M. Rodriguez Nuclear Regulatory Commission Office of Nuclear Reactor Regulation, Washington, DC 20555-0001 Phone:301 415-3703 Email: veronica.rodriguez@nrc.gov |