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Joint Committee on Nuclear Risk Management (ANS/ASME)

The JCNRM Consensus Committee is responsible for the preparation and maintenance of voluntary consensus standards that establish safety and risk criteria and methods for completion of probabilistic risk analysis (PRA) and risk assessments. Additional related standards activities may be performed as upon concurrence of the ANS Standards Board and the ASME Standards & Certification Board. These criteria and methods are applicable to design, development, construction, operation, decontamination, decommissioning, waste management, and environmental restoration for nuclear facilities. Activities of the consensus committee shall be guided by the Procedures for ASME Codes and Standards Development Committees but shall also meet the intent of ANS Standards Committee Procedures Manual for Consensus Committees unless specifically authorized by the ANS Standards Board.

Working Group

ANS-58.22, Low Power and Shutdown PRA Methodology

Scope: This standard sets forth the requirements for Low Power and Shutdown (LPSD) probabilistic risk assessments (PRAs) and for LPSD Qualitative Risk Assessments, both of which are used to support risk-informed decisions for commercial light water reactor nuclear power plants. This standard also prescribes a method for applying these requirements for specific applications.

ANS-58.24, Severe Accident Progression and Radiological Release (Level 2) PRA Methodology to Support Nuclear Installation Applications

Scope: This standard provides criteria and acceptable methods for the evaluation of containment performance and radiological releases to the environment. The radiological releases considered result from postulated accidents that cause fuel damage and are used in risk-informed applications requiring Level 2 probabilistic risk assessment (PRA). The standard addresses sequences initiated by internal or external events during full power operation.

ANS-58.25, Standard for Radiological Accident Offsite Consequence Analysis (Level 3 PRA) to Support Nuclear Installation Applications

Scope: This standard provides requirements for application of risk-informed decisions related to the consequences of accidents involving release of radioactive materials to the environment. The consequences to be addressed include health effects (early and late) and longer term environmental impacts. The required capabilities allow determination of the efficacy of mitigation strategies on reducing consequences.

Last updated July 22, 2014, 2:54pm CDT.

 
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