Document: NUREG-0800
Document ID: 56298a3a-bad0-4f4d-91c4-5fc5c1817434
Document Type: srp
Title: INTERLOCK SYSTEMS IMPORTANT TO SAFETY
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0704/ML070460348.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.6
CFR Part: 
CFR Title: 

Content:
y supporting features and other auxiliary features. 2. Note: the following finding applies to systems involving digital computer-based components. Based on the review of software development plans and the inspections of the computer development process and design outputs, the staff concludes that the computer systems meet the guidance of Regulatory Guide 1.152. Therefore, the special characteristics of computer systems have been adequately addressed, and the staff finds that the interlock systems satisfy the requirements of 10 CFR 50.55a(a)(1), and GDC 1, 13, and 19. 3. For DC and COL reviews, the findings will also summarize the staff’s evaluation of the requirements and restrictions (e.g., interface requirements and site parameters) and COL action items relevant to this SRP section. 4. Note: the following conclusion is applicable to all applications. The conclusions noted above for the interlock systems are applicable to all portions of the systems except for the following, for which acceptance is based upon prior NRC review and approval as noted [list applicable system or topics and identify references]. 5. In addition, to the extent that the review is not discussed in other SER sections, the findings will summarize the staff's evaluation of the ITAAC, including design acceptance criteria, as applicable. V. IMPLEMENTATION The staff will use this SRP section in performing safety evaluations of DC applications and license applications submitted by applicants pursuant to 10 CFR Part 50 or 10 CFR Part 52. Except when the applicant proposes an acceptable alternative method for complying with specified portions of the Commission’s regulations, the staff will use the method described herein to evaluate conformance with Commission regulations. The provisions of this SRP section apply to reviews of applications submitted six months or more after the date of issuance of this SRP section, unless superseded by a later revision. VI. REFERENCES 1. IEEE Std 279-1971,