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:
e 6 C. REGULATORY POSITION RG 1.192, Revision 5, supersedes Revision 4. For Revision 5 of RG 1.192, the NRC reviewed the OM Code Cases listed in an applicability index on the ASME C&S Connect website. ASME prepared the OM Code Case Applicability Index to specify the applicability of each OM Code Case because some new Code Cases do not include a paragraph specifying the editions and addenda of the ASME OM Code to which they are applicable. The NRC staff reviewed the OM Code Case Applicability Index dated July 1, 2022 (ADAMS Accession No. ML22279A967) as part of this revision to RG 1.192. Any conditions related to use of the OM Code Case Applicability Index for specific OM Code Cases are indicated in this revision to RG 1.192 in the applicable table. The tables in this RG refer to the 2022 Edition; however, the specific applicability of each Code Case is provided in the OM Code Case Applicability Index with any conditions specified in this revision to RG 1.192. Appendix A to this guide gives a complete list of all OM Code Cases published by ASME. The table in Appendix A lists the action ASME has taken (e.g., new or revised OM Code Case), the edition or addenda in which the OM Code Case was published, and the table in the RG that lists each OM Code Case. The following four tables list the OM Code Cases addressed by this RG: a. Table 1, “Acceptable OM Code Cases,” lists the OM Code Cases that are acceptable to the NRC for implementation in the IST of light-water-cooled nuclear power plants. b. Table 2, “Conditionally Acceptable OM Code Cases,” lists the OM Code Cases that are acceptable, provided that they are used with the identified conditions (i.e., the OM Code Case is generally acceptable, but the NRC has determined that the requirements in the Code Case, which are alternatives to the OM Code, must be supplemented in order to provide an acceptable level of quality and safety). c. Table 3, “OM Code Cases That Have Been Superseded by Revised OM Code