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:
nsee’s proposed action and to impose additional measures, where warranted, in accordance with 10 CFR 50.55a(g)(6)(i). Note: The NRC conditionally approved Code Case N-711-1 in RG 1.147. 1/5/06 N-713 Ultrasonic Examination in Lieu of Radiography, Section XI, Division 1 The requirements of Code Case N-713 were based largely on the requirements contained in Code Case N-659. The NRC has not approved Code Cases N-659, N-659-1, or N-659-2. Refer to the discussion on Code Case N-659-2 in Table 1 of this guide for more information. 3/27/20 DG-1408, Page 34 CODE CASE NUMBER TABLE 5 ANNULLED OR SUPERSEDED UNACCEPTABLE SECTION XI CODE CASES ANNULLMENT OR REVISION DATE N-716 Alternative Piping Classification and Examination Requirements, Section XI, Division 1 The NRC has approved risk-informed inservice inspection (RI-ISI) programs based, in part, on methods described in Code Case N-716. The NRC has approved programs for Grand Gulf Nuclear Station, Unit 1 (September 21, 2007, ML072430005); Donald C. Cook Nuclear Plant (September 28, 2007, ML072620553); and Waterford Steam Electric Station (April 28, 2008, ML080980120). The approvals were specific to these units and relied on several changes to the methodology described in Code Case N-716. The NRC is reviewing EPRI Topical Report 1021467, “Nondestructive Evaluation: Probabilistic Risk Assessment Technical Adequacy Guidance for Risk-Informed In-service Inspection Programs.” The purpose of the topical report, in part, is to provide guidance on determining the technical adequacy of probabilistic risk assessments used to develop a “streamlined” RI-ISI program in accordance with Code Case N-716. The staff will consider the revised Code Case for generic approval when it has completed its review of the topical report. Note: The NRC unconditionally approved Code Case N-716-2 in RG 1.147. 4/10/06 N-729-3 N-729-4 N-729-5 N-729-6 N-729-7 N-729-8 Alternative Examination Requirements for PWR Reactor Vessel Upper Heads With Nozzles