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2010-01-01
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Alternate Fracture Toughness Requirements for Protection Against Pressurized Thermal Shock Events
Rules and Regulations
D09002ee1bdd25d19
D09002ee1bdd25eed
United States
Nuclear Regulatory Commission
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United States Government Agency or Subagency
The Nuclear Regulatory Commission (NRC) is amending its regulations to provide alternate fracture toughness requirements for protection against pressurized thermal shock (PTS) events for pressurized water reactor (PWR) pressure vessels. This final rule provides alternate PTS requirements based on updated analysis methods. This action is desirable because the existing requirements are based on unnecessarily conservative probabilistic fracture mechanics analyses. This action reduces regulatory burden for those PWR licensees who expect to exceed the existing requirements before the expiration of their licenses, while maintaining adequate safety, and may choose to comply with the final rule as an alternative to complying with the existing requirements.
75 FR 13
https://www.govinfo.gov/app/details/FR-2010-01-04/E9-31146
E9-31146
FR04JA10-2
RIN 3150-AI01
7590-01-P
NRC-2007-0008
https://www.govinfo.gov/app/details/FR-2010-01-04/E9-31146
https://www.govinfo.gov/content/pkg/FR-2010-01-04/html/E9-31146.htm
https://www.govinfo.gov/content/pkg/FR-2010-01-04/pdf/E9-31146.pdf
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17 p.
13
29
75 FR 13
Code of Federal Regulations
Title 10 Part 50
10 CFR Part 50
Regulation Identification Number 3150-AI01
RIN 3150-AI01
Alternate Fracture Toughness Requirements for Protection Against Pressurized Thermal Shock Events; Federal Register Vol. 75, Issue
RULE
E9-31146
NUCLEAR REGULATORY COMMISSION
2010-02-03
NRC-2007-0008
7590-01-P
E9-31146
Final rule.
The Nuclear Regulatory Commission (NRC) is amending its regulations to provide alternate fracture toughness requirements for protection against pressurized thermal shock (PTS) events for pressurized water reactor (PWR) pressure vessels. This final rule provides alternate PTS requirements based on updated analysis methods. This action is desirable because the existing requirements are based on unnecessarily conservative probabilistic fracture mechanics analyses. This action reduces regulatory burden for those PWR licensees who expect to exceed the existing requirements before the expiration of their licenses, while maintaining adequate safety, and may choose to comply with the final rule as an alternative to complying with the existing requirements.
Effective Date: February 3, 2010.
Ms. Veronica M. Rodriguez, Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001; telephone (301) 415-3703; e-mail: Veronica.Rodriguez@nrc.gov, Mr. Matthew Mitchell, Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001; telephone (301) 415-1467; e-mail: Matthew.Mitchell@nrc.gov, or Mr. Mark Kirk, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001; telephone (301) 251- 7631; e-mail: Mark.Kirk@nrc.gov.
Antitrust
Classified Information
Criminal Penalties
Fire Protection
Intergovernmental Relations
Nuclear Power Plants and Reactors
Radiation Protection
Reactor Siting Criteria
Reporting and Recordkeeping Requirements
Alternate Fracture Toughness Requirements for Protection Against Pressurized Thermal Shock Events
,
Carol.Gallagher@nrc.gov
ChristineJ.Kymn@omb.eop.gov
INFOCOLLECTS.Resource@nrc.gov
Mark.Kirk@nrc.gov
Matthew.Mitchell@nrc.gov
PDR.Resource@nrc.gov
Veronica.Rodriguez@nrc.gov
http://www.nrc.gov/reading-rm/adams.html
http://www.regulations.gov
Regulations.gov
www.nrc.gov/reading-rm.html
Federal Register
Vol. 75, no. 1
Office of the Federal Register, National Archives and Records Administration
2010-01-04
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227 p.
Table of Contents:
AE 2.7:
GS 4.107:
AE 2.106:
KF70.A2
https://www.govinfo.gov/app/details/FR-2010-01-04
P0b002ee18015200d
0097-6326
0042-1219
0364-1406
769-004-00000-9
000582072
f:FR04JA10
https://www.govinfo.gov/app/details/FR-2010-01-04
https://www.govinfo.gov/content/pkg/FR-2010-01-04/pdf/FR-2010-01-04.pdf
https://www.govinfo.gov/content/pkg/FR-2010-01-04/xml/FR-2010-01-04.xml
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