NRC Generic Letter 1984-03
UNITED STATES
NUCLEAR REGULATORY COMMISSION
WASHINGTON, D. C. 20555 January 13, 1984 TO ALL LICENSEES OF OPERATING REACTORS, APPLICANTS FOR OPERATING LICENSES,
AND HOLDERS OF CONSTRUCTION PERMITS
Gentlemen:
SUBJECT: AVAILABILITY OF NUREG-0933, "A PRIORITIZATION OF GENERIC SAFETY
ISSUES" (Generic Letter 84-03)
This letter is to inform you that NUREG-0933, "A Prioritization of Generic Safety Issues," will be published in January, 1984, and may be purchased by calling (301) 492-9530 or by writing to the NRC/GPO Sales Program, Division of Technical Information and Document Control, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555, or purchased from the National Technical Information Service, Department of Commerce, 5258 Port Royal Road, Springfield, VA 22161. This report presents the priority rankings for a large number of generic safety issues related to nuclear power plants. The purpose of these rankings is to assist in the timely and efficient allocation of NRC resources for the resolution of those safety issues that have a significant potential for reducing risk. The safety priority rankings of HIGH, MEDIUM, LOW, and DROP have been assigned on the basis of risk significance estimates, the ratio of risk to costs and other impacts estimated to result if resolutions of the safety issues were implemented, and the consideration of uncertainties and other quantitative or qualitative factors, as discussed in the Introduction of the report. To the extent practical, estimates are quantitative.
The report does not contain any new requirements or guidance for licensees or applicants but does list and briefly describe, for the purpose of completeness, some of the safety issues that have been resolved and were previously issued as requirements or guidance. Although changes to nuclear power plant designs or operation are assumed, the sole purpose in prioritizing the issues is to estimate costs and other impacts that might result if such changes were implemented.
It is suggested that you review the safety issues listed in the report that have been removed from further consideration by the NRC (i.e., those issues with LOW or DROP priority rankings) or are in the process of resolution (i.e., those issues nearly resolved or with a HIGH or MEDIUM priority ranking). The purpose of your review would be to identify those issues that may have particular significance for your nuclear power plants. The priority rankings in the report are based on generic assessments, i.e., assessments of plants thought to be typical of a class of plants. Thus, the safety significance of an issue might be greater (or less) for a specific plant
8401130084
January 13, 1984 TO ALL LICENSEES OF OPERATING REACTORS, APPLICANTS FOR OPERATING L1CENSES,
AND HOLDERS OF CONSTRUCTION PERMITS
x\I-L~<
Gentlemen: /
SUBJECT: AVAILABILITY OF NUREG-0933, "A PRIORITIZATION ,F GENERIC SAFETY
ISSUES" (Generic Letter 84-03) /
This letter is to inform you that NUREG-0933, "A rioritization of Generic Safety Issues," is expected to be published in anuary 1984 and will be available through the National Technical Info ation Service, Springfield, Virginia 22161. This report presents the pr ority rankings for a large number of generic safety issues related t nuclear power plants. The purpose of these rankings is to assist in the ti ely and efficient allocation of NRC
resources for the resolution of those fety issues that have a significant potential for reducing risk. The sa ty priority rankings of HIGH, MEDIUM,
LOW, and DROP have been assigned o the basis of risk significance estimates, the ratio of risk to costs and ot er impacts estimated to result if resolutions of the safety issue were implemented, and the consideration of uncertainties and other quant ative or qualitative factors, as discussed in the Introduction of the repor. To the extent practical, estimates are quantitative.
The report does not con in any new requirements or guidance for licensees or applicants but doe list and briefly describe, for the purpose of completeness, some o the safety issues that have been resolved and were previously issued requirements or guidance. Although changes to nuclear power plant desig s or operation are assumed, the sole purpose in prioritizing th/ issues is to estimate costs and other impacts that might result if such/changes were implemented.
It is sugge ed that you review the safety issues listed in the report that have been emoved from further consideration by the NRC (i.e., those issues with LOW r DROP priority rankings) or are in the process of resolution (i.e., ose issues nearly resolved or with a HIGH or MEDIUM priority rankin). The purpose of your review would be to identify those issues that may ve particular significance for your nuclear power plants. The priority ran ings in the report are based on generic assessments, i.e., assessments of p1 nts thought to be typical of a class of plants. Thus, the safety gnificance of an issue might be greater (or less) for a specific plant
8401130084 OFFICES .........................
.. ..............
SURKAMES . ................................
DATES
..
..............
......... ............... ........................ .........
........................ .......................
[I
I*
.................... .................. ./.....
........................ ............. .............. .......... .............. ........................
................... ........................
. %3
............7 3...........................
...!..... ........................
........................ ........................
NRC FORM 318 (10-80) NRCM 0240 O FFICIA L R EC O RD C OPY USGPO: 1981335-9W
w- - Is
-2 -
because of features of the design or operation that are different from those assumed in the generic assessments. Based on your review, you may decide that some actions may be appropriate pending resolution by the NRC.
No reply to this letter is required, except in those instances where you may decide that action related to some safety issue is needed and would require a modification of your Technical Specifications, license, or application in accordance with Paragraphs 50.90 and 50.91 of 10 CFR Part 50.
Original signed Wj Darrell G. Eisenhut, Director Division of Licensing Office of Nuclear Reactor Regulation Cor~snvviCJ ;h~d hjb,
' I I , ,1-,
OFFICE SPEB:DSOED
OFFIC~~~t .........~~~...... ...... ..... ... . .... ST....................
.............. *-L;;..... . ........... Di SURAME ritL' JScinto FRowsome DE
DATER
/5 /83......
l2 / /83 12/
1C12/ /83
........................C........................
12/p /83
........................
12/g. /83
.............
\\/83
.......... ........................
NRC FORM 318 (t0-80) NRCM 0240 _O FFICIA L R EC O RD C OPY USGPO: 1981X-335-960
V
0 UNITED STATES
NUCLEAR REGULATORY COMMISSION
WASHINGTON, D. C. 20555 January 13, 1984 TO ALL LICENSEES OF OPERATING REACTORS, APPLICANTS FOR OPERATING LICENSES,
AND HOLDERS OF CONSTRUCTION PERMITS
Gentlemen:
SUBJECT: AVAILABILITY OF NUREG-0933, "A PRIORITIZATION OF GENERIC SAFETY
ISSUES" (Generic Letter 84-03)
This letter is to inform you that NUREG-0933, "A Prioritization of Generic Safety Issues," will be published in January, 1984, and may be purchased by calling (301) 492-9530 or by writing to the NRC/GPO Sales Program, Division of Technical Information and Document Control, U.S. Nuclear Regulatory Commission, Washington, D.C. 20555, or purchased from the National Technical Information Service, Department of Commerce, 5258 Port Royal Road, Springfield, VA 22161. This report presents the priority rankings for a large number of generic safety issues related to nuclear power plants. The purpose of these rankings is to assist in the timely and efficient allocation of NRC resources for the resolution of those safety issues that have a significant potential for reducing risk. The safety priority rankings of HIGH, MEDIUM, LOW, and DROP have been assigned on the basis of risk significance estimates, the ratio of risk to costs and other impacts estimated to result if resolutions of the safety issues were implemented, and the consideration of uncertainties and other quantitative or qualitative factors, as discussed in the Introduction of the report. To the extent practical, estimates are quantitative.
The report does not contain any new requirements or guidance for licensees or applicants but does list and briefly describe, for the purpose of completeness, some of the safety issues that have been resolved and were previously issued as requirements or guidance. Although changes to nuclear power plant designs or operation are assumed, the sole purpose in prioritizing the issues is to estimate costs and other impacts that might result if such changes were implemented.
It is suggested that you review the safety issues listed in the report that have been removed from further consideration by the NRC (i.e., those issues with LOW or DROP priority rankings) or are in the process of resolution (i.e., those issues nearly resolved or with a HIGH or MEDIUM priority ranking). The purpose of your review would be to identify those issues that may have particular significance for your nuclear power plants. The priority rankings in the report are based on generic assessments, i.e., assessments of plants thought to be typical of a class of plants. Thus, the safety significance of an issue might be greater (or less) for a specific plant 11
4
8401130084
,-#9
..
-2 -
because of features of the design or operation that are different from those assumed in the generic assessments. Based on your review, you may decide that some actions may be appropriate pending resolution by the NRC.
No reply to this letter is required, except in those instances where you may decide that action related to some safety issue is needed and would require a modification of your Technical Specifications, license, or application in accordance with Paragraphs 50.90 and 50.91 of 10 CFR Part 50.
Darrell G. E enhut, Director Division of Licensing Office of Nuclear Reactor Regulation
/-~ /I
LLt
, X
r FIRST EtASS MAli UNITED STATES
POSTAGE & FEESPAID
NUCLEAR REGULATORY COMMISSION USNRC
WASHINGTON, D.C. 20555 WASH0 C
PEAMplNo SIL
OFFICIAL BUSINESS
PENALTY FOR PRIVATE USE, $300