Document: NRC Regulatory Guide
Document ID: 7d480029-59df-44fe-9db8-c1c86566dac9
Document Type: regulatory_guide
Title: Operation and Maintenance Code Case Acceptability, ASME OM Code (Rev. 5)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2219/ML22196A063.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.192
CFR Part: 
CFR Title: 

Content:
ce and Inservice Testing of Power-Operated Valves That Are Used for System Control and Have a Safety Function per OM-10, ISTC-1.1, or ISTA-1100 OMN-13, Revisions 3 & 4 (2020 Edition) Performance-Based Requirements for Extending Snubber Inservice Visual Examination Interval at LWR Power Plants [OMN-13 Revision 3 incorporated into 2022 Edition] OMN-15, Revision 4 (2022 Edition) Performance-Based Requirements for Extending the Snubber Operational Readiness Testing Interval at LWR Power Plants OMN-16, Revision 2 (2022 Edition) Use of a Pump Curve for Testing OMN-17, Revision 1 (2022 Edition) Alternative Requirements for Testing ASME Class 1 Pressure Relief/Safety Valves OMN-18 (2022 Edition) Alternate Testing Requirements for Pumps Tested Quarterly Within ±20% of Design Flow OMN-21 (2022 Edition) Alternative Requirements for Adjusting Hydraulic Parameters to Specified Reference Points OMN-22 (2020 Edition) Smooth Running Pumps [OMN-22 incorporated into 2022 Edition] OMN-23 (2022 Edition) Alternative Requirements for Testing Pressure Isolation Valves OMN-24 (2022 Edition) Alternative Requirements for Testing ASME Class 2 and 3 Pressure Relief Valves (For Relief Valves in a Group of One) DG-1407, Page 8 Code Case Number Table 1 Acceptable OM Code Cases OMN-25 (2022 Edition) Alternative Requirements for Testing Appendix I Pressure Relief Valves OMN-26 (2022 Edition) Alternate Risk-Informed and Margin Based Rules for Inservice Testing of Motor Operated Valves OMN-27 (2022 Edition) Alternative Requirements for Testing Category A Valves (Non-PIV/CIV) OMN-28 (2022 Edition) Alternative Valve Position Verification Approach to Satisfy ISTC-3700 for Valves Not Susceptible to Stem-Disk Separation OMN-29 (2022 Edition) Pump Condition Monitoring Program OMN-30 (2022 Edition) Alternative Valve Position Verification Approach to Satisfy ISTC-3700 DG-1407, Page 9 2. Conditionally Acceptable OM Code Cases The OM Code Cases listed in Table 2 are acceptable to the NRC for application in