ML11224A119
| ML11224A119 | |
| Person / Time | |
|---|---|
| Site: | Technical Specifications Task Force |
| Issue date: | 08/03/2011 |
| From: | Licensing Processes Branch (DPR) |
| To: | |
| References | |
| Download: ML11224A119 (8) | |
Text
8/3/2011 Technical Specifications Task Force TSTF A Joint Owners Group Activity TSTF Concerns with the Proposed NFPA-805 License Conditions Technical Specifications Task Force TSTF A Joint Owners Group Activity Proposed License Conditions
" The Staff in RG 1.205 (Rev. 1) includes a sample LAR, which contains language for the license conditions to be included in the plant's Operating License (OL).
" The industry has been counseled to not deviate from this proposed LAR for fear of rejection per LIC-109.
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.Technical Specifications Task Force TSTF A Joint Owners Group Activity License Conditions The first paragraph can be condensed to:
- Follow 50.48(a) and 50.48(c). The licensee can make changes to the program without prior NRC approval unless the regulations say they can't.
The sections "Risk Informed Changes that may be made without prior NRC approval" and "Other changes that may be made without prior NRC approval" then provide limitations on the changes the licensee can make without prior NRC approval that are more restrictive than 50.48(c).
- Why isn't this in the regulations, a Reg Guide, or endorsed Topical Report?
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8/3/2011 Technical Specifications Task Force TSTF A Joint Owners Group Activity License Conditions The sections provide criteria for allowable changes with and without NRC prior approval - both risk-informed (including specific values for delta-CDF and delta-LERF) and "other changes" (presumably non-risk informed), quality of models that can be used to justify the changes, and the qualification of individuals that can approve these changes.
Technical Specifications Task Force TSTF A Joint Owners Group Activity License Conditions
- These criteria mimic those in established risk informed Reg.
Guides, such as RG 1.174 (Rev 2):
"Result in risk increase less than lxlO-7/year (yr) for CDF and less than lxlO-8/yr for LERF." (Note: these are more restrictive than RG 1.174)
.... must be consistent with the defense-in-depth philosophy and must maintain sufficient safety margins."
Use acceptable methods to assess the risk of the change, which goes on to give 4 alternatives from "peer-reviewed Fire PRA models"
- The level of detail in these license conditions far exceed any other area, such as EP, or Security, in the OL, which reference an approved plan and specific correspondence. These referenced documents have criteria for how to modify these plans.
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8/3/2011 Technical Specifications Task Force TSTF A Joint Owners Group Activity Duplicative or Conflicting Here are two sections from the LC that cover the same material, but are worded differently:
"The risk assessment approach, methods, and data shall be acceptable to the NRC and shall be appropriate for the nature and scope of the change being evaluated; be based on the as-built, as-operated, and maintained plant; and reflect the operating experience at the plant."
"Acceptable methods to assess the risk of the change may include methods that have been used in the peer-reviewed fire PRA model, methods that have been approved by NRC through a plant-specific license amendment or NRC approval of generic methods specifically for use in NFPA 805 risk assessments, or methods that have been demonstrated to bound the risk impact."
Are these separate, complimentary, or conflicting?
Technical Specifications Task Force TSTF A Joint Owners Group Activity Undefined Terms Introduces vague terms and requirements, such as:
- "adequate for the hazard"
- "a relevant technical requirement or standard."
- "methods that have been demonstrated to bound the risk impact." (demonstrated in what manner?)
- "clearly result in a decrease in risk" (criteria implied?)
- "must maintain sufficient safety margins"
- "Qualified fire protection engineer" 4
8/3/2011 Technical Specifications Task Force TSTF A Joint Owners Group Activity Undefined Terms These undefined terms will make compliance difficult, in particular as standards are updated with improvements in technology.
Technical Specifications Task Force TSTF A Joint Owners Group Activity Inconsistency Between Guidance
" Creates potential conflicts between these OL requirements, and others such as RG 1.174, as the delta-CDF and delta-LERF requirements are not the same and with RG 1.200 on acceptable PRA modeling.
- We are concerned with potential conflicts between these OL conditions and 10 CFR 50.69, RG 1.200 & RG 1.174
- NEI 06-09 methodology used for risk-informed Completion Times is based RG 1.174 acceptance criteria and RG 1.200 Rev. 2 requires consideration of fire risk. What criteria are applicable?
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8/3/2011 iTechnical Specifications Task Force TSTF A Joint Owners Group Activity Inconsistent with Normal Regulatory Process The detailed license condition is inconsistent with normal regulatory process, such as.
Rulemaking to codify such allowance, criteria, or qualification, or
- Administrative Controls that reference an approved LTR that describes the change process, similar to other "risk-informed" initiatives, such as Maintenance Rule, Risk-informed ISI, TSTF-425, TSTF-505, etc.
10 CFR 50.109. The reference to a "relevant" technical requirement or standard could lead to inspectors expecting licensees to adopt new standards without the evaluation required by the Backfit Rule.
Technical Specifications Task Force TSTF A Joint Owners Group Activity Staff Guidance
" LIC-202, Rev. 3, states:
- The escalation of an action proposed by a licensee as a commitment into a license condition, requiring prior NRC approval of subsequent changes, should be reserved for matters that satisfy the criteria for inclusion in technical specifications by 10 CFR 50.36 or inclusion in the license to address a significant safety issue. Routine commitments on technical matters that do not satisfy the above criteria for license conditions should be discussed in the staff's safety evaluation but should not be escalated into formal license conditions;
" Fire protection doesn't fall under a 50.36 criteria and the change process appears to be a routine technical matter.
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8/3/2011 Techniical Specifications Task Force TSTF A Joint Owners Group Activity Request The TSTF would like to work with the Staff to construct an appropriate regulatory approach for NFPA-805 conversions that would address the above concerns.
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NRC FORM 8C (7-94)
NRCMD 3.57 COVER SHEET FOR CORRESPONDENCE USE THIS COVER SHEET TO PROTECT ORIGINALS OF MULTI-PAGE CORRESPONDENCE