Document: NRC Regulatory Guide
Document ID: a4944d20-ef6e-480b-a45d-14425bedd2e5
Document Type: regulatory_guide
Title: ASME Code Cases Not Approved for Use (Rev. 8)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2219/ML22196A065.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.193
CFR Part: 
CFR Title: 

Content:
The requirements contained in the OM Code should be used. 11/30/88 Annulled 2/14/03 N-473 N-473-1 Alternative Rules for Valve Testing, Section XI, Division 1 The draft standard referenced in the Code Case is outdated. The requirements contained in the OM Code should be used. 3/8/89 Annulled 2/14/03 N-480 Examination Requirements for Pipe Wall Thinning Due to Single Phase Erosion and Corrosion, Section XI, Division 1 The Code Case has been superseded by Code Case N-597, “Requirements for Analytical Evaluation of Pipe Wall Thinning,” implemented in conjunction with EPRI Nuclear Safety Analysis Center 202L, “Recommendations for an Effective Flow-Accelerated Corrosion Program” (Ref. 15). Annulled 9/18/01 N-498-2 N-498-3 Alternative Requirements for 10-Year System Hydrostatic Testing for Class 1, 2, and 3 Systems, Section XI, Division 1 Note: The NRC conditionally approved Code Case N-498-4 in RG 1.147. 6/9/95 5/20/98 N-532-2 Alternative Requirements to Repair and Replacement Documentation Requirements and Inservice Summary Report Preparation and Submission as Requested by IWA-4000 and IWA-6000, Section XI, Division 1 The NRC identified the following concerns during its review of the Code Case: a. The Code Case references new paragraph IWA-6350, which has not yet been incorporated into the Code. b. The NRC staff had difficulty reconciling Footnote 1 and Table 4 in regard to the applicable edition and addenda. c. Submission of Form OAR-1, “Owner’s Activity Report,” is at the end of each inspection period rather than 90 days following the outage. Note: The NRC unconditionally approved Code Case N-532-5 in RG 1.147. 7/23/02 N-542 Alternative Requirements for Nozzle Inside Radius Section Length Sizing Performance Demonstration, Section XI, Division 1 Code Case N-542 was subsumed by Code Case N-552, “Alternative Methods Qualification for Nozzle Inside Radius Section from the Outside Surface,” which is being implemented by licensees. Thus, there is no need