SECY-16-0033, SRM-SECY-16-0033: Draft Final Rule-Performance-Based Emergency Core Cooling System Requirements and Related Fuel Cladding Acceptance Criteria (Rin 3150-AH42)
| ML24102A281 | |
| Person / Time | |
|---|---|
| Issue date: | 04/11/2024 |
| From: | Carrie Safford NRC/SECY |
| To: | Raymond Furstenau NRC/EDO |
| References | |
| SECY-16-0033 SRM-SECY-16-0033 | |
| Download: ML24102A281 (1) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 April 11, 2024 MEMORANDUM TO:
Raymond V. Furstenau Acting Executive Director for Operations FROM:
Carrie M. Safford, Secretary
SUBJECT:
STAFF REQUIREMENTS - SECY-16-0033 - DRAFT FINAL RULE - PERFORMANCE-BASED EMERGENCY CORE COOLING SYSTEM REQUIREMENTS AND RELATED FUEL CLADDING ACCEPTANCE CRITERIA (RIN 3150-AH42)
Since SECY-16-0033 was provided to the Commission in 2016, the landscape surrounding advanced light-water reactor fuel has changed. The approaches described in the paper should be reconsidered under the current context, including consideration of topics such as accident tolerant fuel, increased enrichment, and higher burnup. Therefore, under the Internal Commission Procedures, Chapter III, page 14, the Commission is returning this paper to the staff without Commission action.
- 1. The staff should apply an appropriate risk-informed regulatory approach to address the research findings on cladding embrittlement effects under loss-of-coolant accident (LOCA) conditions described in SECY-16-0033.
- 2. The staff should evaluate Item 1 with other associated technical issues being addressed, such as fuel fragmentation relocation and dispersal, and risk-informed treatment of LOCAs, including the draft final 50.46a that had been provided in SECY-10-0161.
- 3. The staff should evaluate whether specific emergency core cooling system criteria such as cladding temperature should be codified or instead addressed in regulatory guidance.
- 4. Within six months of the date of this SRM, the staff should provide, through a Commissioner Assistants Note, an action plan for the above items.
cc: Chair Hanson Commissioner Wright Commissioner Caputo Commissioner Crowell OGC CFO OCA OPA ODs, RAs, ACRS, ASLBP PDR CARRIE SAFFORD Digitally signed by CARRIE SAFFORD Date: 2024.04.11 16:20:14 -04'00'