Document: NRC Regulatory Guide
Document ID: 2559e7e3-22aa-4dda-8fee-ac029c2a69e4
Document Type: regulatory_guide
Title: Guidance for Residual Heat Removal
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0407/ML040750334.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.139
CFR Part: 
CFR Title: 

Content:
with either only onsite or only offsite power available with an assumed single failure. 7. OPERATIONAL PROCEDURES The operational procedures for bringing the plant from normal operating power to cold shutdown should be in conformance with Regulatory Guide 1.33. For pressurized water reactors, the operational procedures should include specific procedures and information required for cooldown under natural circulation conditions. D. IMPLEMENTATION The purpose of this section is to provide information to applicants regarding the NRC staff's plans for implementing this regulatory guide. Except in those cases in which the applicant proposes an acceptable alternative method for complying with the specified portions of the Commission's regulations, the method described herein will be used in the evaluation of submittals in connection with applications for construction permits for all plants (standard and custom), manufacturing licenses, and preliminary design approvals docketed on or after January 1, 1978. All applications docketed before January 1, 1978, will be reviewed against this guide on a case-by-case basis. V C. S. GOVERNMENT PRtNTINGC OFFlCE: 1979-72O-357/12. 1.139-6