Text

Risk Tool (NRC Discussion Material for 9-9-2020 Tabletop Meeting with NEI)
	ML20248H556
Person / Time
Issue date:	09/09/2020
From:	; Office of Nuclear Material Safety and Safeguards
To:	;
	TLiu NMSS/DFM/MCAB 404.997.4730
References
	Download: ML20248H556 (3)
	v • d • e

Use of Risk Insight: The tool supports preliminary determination of the risk significance rating for each requested change.

risk significance together with complexity of the change is used to assist the determination of the depth of the review (e.g. extent of confirmatory calculations).

In all cases, the reviewer still needs to exercise professional judgement in deciding the necessary thoroughness.

Draft Internal Procedure for Applying Risk Tool in License Application Request (LAR)

2 Walkthrough Procedures in November

In an upcoming meeting, NRC staff will explain the application of the draft Risk Tool procedures in LAR review.

NRC staff will develop an example of a LAR with component changes that include high and low risk items (hypothetical).

3 Evaluation Steps For Applying the Risk Tool DRAFT Evaluation Steps Reviewer Response 1.What is the change?

Write a summary of the change.

2. Does the Risk Tool flow chart include a gate for this change, and include an accurate description in the Dry Cask Risk Tool Report? (Yes or No)

If Yes, proceed to #3.

If No, proceed to #4.

3. Is reviewer aware of additional information that should be considered?

If Yes, follow-up review with other reviewers and BC, then, proceed to #4.

If No, go to #5.

4. Should the Risk Tool be modified?

If Yes, document/update the information in the Risk Tool. Go to #5.

If No, go to #5.

5. Proceed to develop estimate of component risk of LAR change (e.g., low, medium, high),

and followup with other reviewers and BCs as appropriate.

ML20248H556