ML20043A282

Licensed Fuel Facility Status Report.Inventory Difference Data.July 1988 - June 1989.(Gray Book II)

ML20043A282
Person / Time
Issue date:	04/30/1990
From:	NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS)
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References
NUREG-0430, NUREG-0430-V09-N02, NUREG-430, NUREG-430-V9-N2, NUDOCS 9005210145
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NUREG-0430 Vol. 9, No. 2 Licensed Fuel Facility Status Report Inventory Difference Data July 1,1988-June 30,1989 U.S. Nuclear Regulatory Commission

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Final semi-annual edition, Future issues will be published annually only.

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NUREG-0430 Vol. 9, No; 2 i

Licensed Fuel Facility Status Report I

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Inventory Difference Data July 1,1988-June 30,1989 a

Manuscript Completed: March 1990 Date Published: April 1990 I..

i OITice of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Washington, DC 20535

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t ABSTRACT The Nuclear Regulatory Commission (NRC) is committed to an annual publication of licensed fuel facilities' inventory difference (ID) results, after Agency review of the information and completion of any related investigations.

Information in this report includes ID results for active fuel fabrication and/or recovery facilities.

Acronyme and/or abbreviations used in this report are identified on page vii.

The various terms and acronyme used in this publication arc defined on pages 1 through 4.

The previous editions of this document were published at six-month intervals, with the last issue (Volume 9, No. 1 --- dated March 1989) covering the period from January 1, 1988 to June 30, 1988.

With this issue, NRC is switching to a one-year interval, because most low onriched uranium facilities are now on an anntN1 inventory frequency.

Thus, this edition covers the one-year period from July 1,1988, to June 30, 1989.

It should be noted that Rockwell International (Santa Susana, Calif.

--- Docket No. 70-25, SNM License No. 21) has been deleted from this report due to its inactive status (relative to all SNM categories).

Likewise, the lioting of plutonium and uranium-233 ids for GA Technologies (La Jolla, Calif.

Docket No.70-734, SNM License No.

696) has been discontinued, due to the inactive status relative to these two SNM categories.

Plutonium ids at Nuclear Fuel Services (Erwin, Tenn. --- Docket No.70-143, SNM License No. 124) are also being deleted from this report for the same reason.

All inventories associated with the above identified inactive operations resulted in ids of zero, iii I

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CONTENTS-8 f.agg Abstract...............................................-. iii, 4

Abbreviations /Aoronyms..-................................ vii

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Definition of_terno.......................................

1 Introductory discussion:

5 Taculation of Inventory Differences -...................-..

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ABBREVIATIONS / ACRONYM 8:

i C.L.

Confidence level CFR Code of Federal Regulations FKG-Formula kilogram (s)

HEU High(ly) enriched uranium 1

ID Inventory difference I

LEID Limit of error of an-inventory. difference L

1 LEU Low enriched uranium MUF Material unaccounted for g

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NRC Nuclear'Resulatory-Commission i

i Pu Plutonium i

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SEID Standard error of an inventory difference SM Source material F

SNM Special nuclear material s

SSNM Strategic special nuclear material U-233 Uranium-233 U-235 Uranium-235 Pu-238 Plutonium-238 i

Pu-239 Plutonium-239 r

Pu-241

' Plutonium-241

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p DEFINITION OF' TERMS l

L 1.

Isotope:

A nuolide of a chemical element (such as uranium or l

plutonium).whose atoms all have the same number of neutrons, as l

well as the same number of protons,-within their nuclei.

That is, all isotopes of a given element must-have the same number of u

protons within the nuclei of their-atoms, but the number of neutrons per nucleus varies between isotopes.. It is the number of protons plus neutrons within an atom's.nuoleus that defines its mass number.

U-233, U-235:and U-238 are three isotopes of uranium (the latter two being found in natural ooourring uranium ores) having 141, 143, and 146 neutrons, respectively, within the nucleus of each of their atoms.

r 2.

Fissile Isotope (or Wuolide):

A nuolide species that is capableJof giving rise to a self-sustaining chain reaction (of nuclear fission) when present in sufficient mass and concentration.

U-233,

[

U-235, Pu-239, and Pu-241 are the only fissile nuolides contained in "special nuclear material" (SNM), which also coraists of other uranium-and plutonium' isotopes.

3.

Source Material (SM):

(1) Natural uranium or thorium, or depleted-uranium, or any combination thereof, in any physical or chemical form, or (2). ores which contain by weight 0.05 percent or more of (i) uranium, (ii) thorium, or (iii)'any combination thereof.

SM does not include SNM.

4.

Special Nuclear Material (SNM):

(1) Plutonium, uranium-233, uranium enriched in the isotope uranium-235, and any other material that the Commission,-pursuant to the provisions of Section 51 of the Atomic Energy Act of 1954 (as amended), determines to be SNM; or (2) any material artificially enriched in any of the foregoing.

SNM (of any type) does not include SM.

5.

High Enriched Uranium (HEU):

Any uranium-bearing material-whose-uranium isotope content is 20 percent or mors U-235 by weight l

(relative to total uranium element content).

l 6.

Low Enriched Uranium (LEU):

Any uranium-bearing material whose uranium isotope content is less than 20 percent, but greater than 0.72 percent, U-235 by weight (relative to total uranium element content).

7. Natural Uranium:

Any uranium-bearing material whose uranium iso-topic distribution has not been altered from its natural occurring g

state.

Natural uranium is nominally 99.283% U-238, 0.711% U-235,.

j and 0.006% U-234.

J 8.

Depleted Uranium:

Any uranium-bearing material whose combined U-233 plus U-235 isotopio content is less than 0.70 nercent by weight (relativi to total uranium element content).

1

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9.

Stratesic Soecial Nuclear Material (88NM):. Uranium-235 cantoined in HEU, uranium-233, or plutonium.. NOTE: All 88NM is SNM, but not-all SNM is SSNM.

10. Effective Kiloaram of SNM:

(1) For plutonium and U-233, their weight-in kilograms; (2) for uranium with an enrichment in the isotope U-235 of 1.00 percent (0.01 weight traction) and above, its element weight in kilograms multiplied by the square of its enrichment expressed as.a decimal weight frection;iand (3) for uranium with an enrichment in U-235-below :

0 peruent, but above-0.71 percent, its element weight in kilostcr multiplied

>y.

0001.

11. Formula Kilocram (FKG):

1,000 formula grams of BSNM computed by the following equation:

(grams U-235 contained in HEU)

+.2.5 (grams U-233)

Grams

=

+ 2.5 (grams plutonium)

12. Formula Quantity:

SSNM in any combination in a quantity of 5,000 formula grams or more, as computed by the same equation as given above in definition No. 11.

(NOTE: In unirradiated form, this quantity of SSNM'io sometimes

<! erred to as a Category I quantity of material.)

13. SNM of Moderate Strategic Sinniticance:

(1) Less than a-formula quantity of SSNM, but more 1,000 grams of U-235 contained in HEU, or more than 500 grams of U-233 or plutonium, or more than a com-bined quantity of 1,000 formula grams when computed by the equation:

l (grams U-235 in HEU) + 2~(grams U-233 + grams Pu)

Grams =

or (2) 10,000 grams or more of U-235 contained in LEU enriched to 10 percent or more (but less than 20 percent) _in the U-235 l

isotope.

(NOTE: In unirradiated form, either:of'the'above two quantities is sometimes referred to,as a Category II quantity.)

14. SNM of Low Stratesic Sinnificance:

(1) Less than an amount of-SNM of moderate stratesio significance, but more than 15 grams'of~(i)

U-235 contained in HEU, (ii) U-233, (iii) plutonium, or (iv) any combination thereof; (2) less than 10,000 grams.but more than 1,000 grame c7 U-235 contained in LEU enriched to 10 percent or more (but less then 20 percent) 'n.the U-235 isotope; or.(3) i 10,000 grams or more of U-235 contained in' LEU enriched abtve natural, but less than 10 percent,s in the U-235 isotope.

(NOTE: In unirradiated form, any of the above three quantities is sometimes referred to as a Category-III quantity.)

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15. Inventory Difference (ID):

Tho1orithnotic difforanco betwoon o-book inventory and the corresponding physical inventory, calou-lated by subtracting ending inventory (EI) plus removals from inventory (R) from beginning inventory (BI) plus additions to in-ventory (A).

Mathematically, this can be expressed as:

ID'=

(BI + A)

(EI + R).

16. Limit of Error of the ID (LEID):

Twice the standard error of the estimated measurement uncertainty associated with the ID. or in other words, twice the square root of the measurement variance associated with the ID.

17. Standard Error of the ID (SEID):

(a) For licensees subject to 10 CFR 74.31, SEID is equal to the square root of the sum of both measurement and non-measurement variances associated with ID.

l (b) For toensees subject to 10 CFR 74.59, SEID is equal to the

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square root of the measurement variance (only) associated with i

ID.

18. Detection Quantity (DQ):

A site-specific SNM quantity for Category III licensees whose processing activities are limited to SNM of low strategio significance..

The DQ is normally a function.

j of annual throughput, but for low-throughput LEU facilities, the DQ need not be less than 25 kilograms of U-235.

The DQ-can also i

be described as a goal quantity, the loss or theft of which must I

be detected with a 90 percent (or better) probability whenever a physical inventory is taken.

1

19. Detection Threshold (DT):

An ID limit that will~be exceeded (with i

90 percent or higher probability) by an ID (resulting from the i

taking of a physical inventory) whenever there has been an actual loss of a detection quantity.

The-DT'io a function of both the DQ and SEID, as shown in the following equation:

• DT = DQ - 1. 3 ( SEID)

20. The ID Was Within Its Desired Ranse:

The ID was either less than' (i) 200 grams plutonium or U-233, (ii) 300 grams U-235 contained in HEU, or (iii) 9000 grams U-235 contained in LEU, as appropri-ate, or was less than its associated LEID or SEID.

21. The ID Was Within Its Resulutory Limit:

The ID exceeded both (1) 200 grams U-233 or plutonium, 300 grams U-235 contained in HEU or 9,000 grams U-235 contained in LEU (as appropriate), and (2) its associated LEID or SEID, but was less than 1.5 times the limit for LEID (for 10 CFR 70.51 licensees) or less than the ID limit (for 10 CFR 74.31 and 74.59 licensees).

For 10 CFR 74.31 licensees, the ID limit is the site-specific detection threshold quantity, which is considerably larger than SEID.

For 10 CFR 74.59 licensees, the ID limit is three times SEID.

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22.. The Ill Was Excessive:

Tho ID oxcosdsd its applio6 Slo roculatory limit and was thus subject to both licensee and f; tryestigations.

to determine the cause(s) of the excessive value 149e.dless of whether the ID was negative or positive).

23. Nemative ID:

A situation that occurs when the amount of SNM on-L hand, as determined by the physical inventory, exceeds the amount of SNM being carried on the. books (records).

That is, there appears to be a gain in material.

Mathematically, a negative.ID l

is written as-"-ID," or shown in parentheses.

A negative ID is also referred to asian "ID gain."

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24. Positive ID:

A situation that occurs when the amount of SNM on l

hand, as determined by the physical inventory, is less:than the amount o.* BNM being. carried on the books-(records).

That is, there appears to be a loss of material. ~ Mathematically, a posi-tive-ID is writtenLas

"+ID," or is shown without any-designation-of sign.

A' positive ID is also referred to as an "ID loss."

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25. Plant:

For'8NM control and accounting purposes, a plant is i

defined as a set of processes or operations (on the same site, but I

not necessarily all in the same building) coordinated into a single manufacturing, R&D, or testing effort.

Most licensees have only one plant in this context.

A scrap recovery operation serving both onsite and offsite customers, or more than one onsite manufacturing effort'(plant), would be-treated aus a separate plant.

26. SNM Categories-For inventory and accounting purposes, SNM is i

c l a s s i f ir-d into five categories (not to be confused with Categorike I, II, and III quantities).

The five categories are LEU, HEU, uranium-233, plutonium, and plutonium-238.- For each category, SNM is accounted for on both1a total element-and' isotope basis.

The element and isotope for each category are as follows:

CATEGORY ELEMENT ISOTOPE LEU Total Uranium U-235 HEU-Total Uranium-U-235 Uranium-233 Total Uranium U-233 Plutonium Total Plutonium Pu-239'+ Pu-241 Plutonium-238 Total Plutonium Pu-238 t

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INTRODUCTORY DISCUSSION i

1 LICENSED FUEL FACILITY STATUS REPORT --- INVENTORY DIFFERENCE RESULTS An inventory difference (ID), also referred to as material unaccounted for (MUF), is the difference between the quantity of special nuclear caterial (SNM) that a licensee's accounting records show should be on hand and that which a licensee's physical inventory shows is actually l

on hand.

Both quantities (i.e.,

book and physical) are subject to ceasurement uncertainties, recording errors, etc.

The ID information presented is for active, licensed facilities that are authorized to possess and use, in an unsealed form, at least one offective kilogram of SNM.

The U.S. Nuclear Regulatory Commission (NRC) uses a graded approach in applying safeguards requirements for ouch licensees, depending on the strategio significanoe of the SNM authorized for possession.

Licensees authorized to have significant quantities of strategio SNM ---

i.e.,

high enriched uranium (HEU),

plutonium, or uranium-233 --- are required to conduct physical inventories every two months.

Facilities authorized to possess and use one or more effective kilograms of SNM of moderate strategic oignificance conduct inventories every six months, whereas licensees whose holdings are restricted to SNM of low strategic significance perform physical inventories every 12 months.

It is important to understand the distinction between the low otratesio significance of low enriched uranium (LEU) and the higher strategic significance of HEU and plutonium.

LEU urad to fabricate fuel assemblies for commercial power reactors is enriched to a level of one to five percent in the U-235 isotope.

At this level of enrichment, the uranium is not capable of generating a nuclear oxplosion (regardless of its quantity and configuration).

NRC safeguards requirements covering LEU are graded to reflect its low otrategic significance.

They include a formal structured system for caterial control and accounting and basic industrial security measures.

On the other hand, because of.the higher strategio significance of HEU end plutonium (which under certain circumstances could be utilized for the fabrication of a nuclear explosive device),

NRC requires licensees to provide substantial physical protection of these materials.

Additionally, more rigorous controls and accounting programs are imposed.

Physical protection of strategic SNM includes oafeguards measures such as barriers, intrusion alarms, armed guards, and off-site police response.

Internal systems to control the move-ment of strategio SNM and to monitor-its presence are also required.

Non-zero ids, both positive and negative, result from a combination of factors such as measurement variability (i.e.,

measurement uncer-tainty), measurement errors (i.e.,

measurement mistakes), changes in the quantity of unmeasured equipment holdup, and racording error".

An 5

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uncoccursd loos (oither accidental or doliborate) er thoft would givo.

rise to a unidirectional (mathesatically positive) impact-on an ID, so as to make a negative ID less negative (or change it to positive) or a positive ID more positive.

Generally speaking, the more complex a facility's process operations are (especially when-dealing with chemical operations), the greater the uncertainty associated with an ID value becomes.

/uthough an ID larger than its overall measurement. uncertainty may signal an abnormal situation (requiring determination of the cause),

the fact that an ID falls within its associated limit of error ---

i even a zero ID value --- provides no automatio or conclusive proof that a loss or theft of SNM has not occurred.

Hence, NRC relies on information provided-not only by the material accounting system, but also by the internal control system, the physical security system, NRC inspectior.s and evaluations, and NRC and licensee investigations.

The concept of the limit of error of the inventory difference (LEID) is a method that licensees subject to 10 CFR 70.51 and NRC use to determine the significance of the ID.

LEID is a calculated estimate of the measurement uncertainty (at the 95 percent confidence level IC.L.3) that is associated with the facility's-ID.

That is, ID should be within the range of zero plus or minus LEID 19 times out of 20, if measurement uncertainty is the only contributor to non-zero ids.

For 10 CFR 70.51 licensees, an ID that-exceeds its associated LEID may be an indication of processing problems, biased or otherwise inaccurate measurementw, bookkeeping errors, or a loss or theft of material.

NRC accordingly requires licensees to take-increasingly stronger investigative actions depending on how much the.ID exceeds both LEID and minimum quantities specified in 10 CFR 74.13(b) namely, 200 grams of plutonium, 300 grams U-235 contained in HEU, or 9000 grams U-235 contained in LEU.

If the ID exceeds its LEID, but-does not exceed the minimum quantity, no formal investigation is required.

The concept of the standard error of inventory difference (SEID)- is a method that NRC and licensees subject to either 10 CFR 74.31 or 74.59 use to determine the significanoe of an ID.

For 10 CFR 74.31 licensees, SEID is a calculated estimate of-the total uncertainty (at the 67 percent C.L.) due to both measurement.and non-measurement contributors.

Thus, for 10 CFR 74.31 licensees, ID should be less than SEID two times out of three, or less than twice SEID 19 times out of 20.

For 10 CFR 74.59-licensees, SEID-Je the calculated estimate of the measurement uncertainty (at the 67 percent C.L.) that is associ--

I ated with an ID.

Hence, for 74.59 licensees, ID should be less than i

SEID two times out of three, and less than twice SEID 19. times-out of.

20, if non-zero ids result only from measurement uncertainty.

For 10 CFR 74.31 licensees (whose operations are limited to SNM of low strategio significance), ID must. exceed its threshold quantity (a site-specific value that is conciderably larger than SEID) before in

• vestigative actions are required.

For 10 CFR 74.59 licensees, inves-6

tigativo cotions are requirod whenovar cn ID cxcoedo both (1) 200 grams plutonium or U-233, or 300 grams U-235, and (ii) three times SEID.

The ids for this reporting period (July 1, 1988 through June 30, 1989) cre indicated in the Tabulation of Inventory Differences that begins on page 8 of this report.

An explanation of the significance, and when appropriate, the contributing factor (s) for ids deemed excessive are included in the last column of the table.

Physical inventories are required for each.6NM category (LEU, HEU, U-233, plutonium, and Pu-238) within each plant.

For those licensees having more than one plant on the same site, the ID value listed, for a given SNM category, is the total site net ID.

SPECIAL NOTE:

On January 4, 1990, the Material Control and Accounting (MC&A) Reform Rule became fully implemented at three fuel facility licensees that possess and use strategio speolal nuelsar material (SSNM) in signif-icant quantities.

The three licensees are Babcock and Wilcox (Navy Nuclear Fuel Division), Nuclear Fuel Services, and UNC Naval Products.

The MC&A Reform Rule consists of the regulations contained in 10 CFR 74.51, 74.53, 74.55, 74.57, and 74.59, and for the three named licensees replaces the MC&A requirements found in 10 CFR 70.51, 70.57, and 70.58.

The MC&A Reform Rule requires a physical inventory frequency of once every six calendar months instead of every two calendar months, as required by 10 CFR 70.51.

The relaxation of the inventory frequency is more than compensated for by process-monitoring and item-monitoring requirements that are intended to provide more timely and more reliable indicators (than that-typically provided by inventory difference results) of any actual loss of a formula quantity of SNM.

Each of the three licensees identified above will, however, remain under a two-month inventory frequency until such time that the NRC is satisfied that the licensee has demonstrated the desired effectiveness of its process-monitoring and item-monitoring programs.

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Tabulation of Inventory Differences 3

Inventory SNM Difference License Docket SNM Inventory (Grams U-235, Licensee No.

No.

Category Date U-233 or_Pu)

Explanation Advanced Nuclear Fuels 1227 70-1257 LEU 06/14/89 18,673 The ID was within its regulatory limit.

(Richland, Wash.)

Babcock & Wilcox - NNFD 42 70-27 HEU 10/31/88

-313 The ID was within its desired range.

(Lynchburg, Va.)

HEU 12/31/88 2918 The ID was within its~

regulatory limit..

HEU O2/28/89

-299 The ID'was within'its desired range.

HEU 04/30/89

-967 The ID was within'its desirederange.

HEU 06/30/89 866 The ID was'within its desired range.

LEU 10/31/88

-49 The ID was within its desired range.

LEU 12/31/88 10 The ID was within its desired-range.

LEU O2/28/89

-44 The'ID was within its desired range.

LEU 04/30/89 16 The ID was within its desired range.

. LEU 06/30/89

-2

.The ID was.within its desired range.

Babcock & Wilcox - CNFP 1168 70-1201 LEU 11/28/88 1,387 The ID was within its desired range.

(Lynchburg, Va.)

LEU 06/19/89 818 The ID was within its desired range.

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.i.i-Tabulation of Inventory Difforencon (Cont.1 Inventory SNM

~ Difference License Docket SNM

-Inventory (Grams-U-235, Licensee-No.

No.

Category Date U-233 or Pu)

Explanation Cintichen,-Inc.

639 70-687 HEU 07/05/88 18 The ID was within its-(Tuxedo, New York) desired range.

HEU 08/31/88

-30 The ID was within ite-desired range.

HEU 11/02/88 2

The.ID.was within.Its.

desired range.

HEU 01/05/89 133 The ID was within its desired range.

HEU 03/02/89 143 The --ID was withir) ite desired' range.

HEU 05/03/89 139 The-ID was within-its desired range.-

"HEU 06/29/89

-32 The.ID was within its desired range.

Combustion Engineering-33

.70-36 LEU

.07/27/88 13,819

.-The-ID was within ito-(Hematite, Missouri) regulatory = limit.

Combustion Engineering 1067 70-1100 LEU

'07/29/88 9,646 The ID was within ite:

(Windsor, Conn.)

desired range.

GA Technologies 696 70-734 HEU 07/25/88 0

The-ID was within its (La Jolla, Calif.)

desired range.

HEU 09/19/88 i

The ID was within its desired range.

~HEU 11/21/88

-2

^The ID was within ite

' desired range.

HEU 01/16/89 10 The.ID was.within its desired range.

HEU 03/20/89

' -17 The ID was within.its.

desired range..

HEU 05/22/89-4

-The ID was"within ite desired range.

9

-i Tabuintion of Invsntory Difforancen (Cont.1

.{

-Inventory SNM Difference License Docket SNM Inventory (Grams U-235, Licensee No.

No.

Category Date U-233 cnr Pu)

Explanation

~

GA' Technologies 696 70-734 LEU 09/19/88 78 The ID was with8c'ite (La'Jolla, Calif.)'

desired ranse, l

(Cont.'from previous pagel LEU 03/20/89

-34 The ID was within its desired range.-

l General Electric Co.

1097 70-1113 -LEU 08/31/88 64,456 The ID was within its I

3 (Wilmington, N.C.)

regulatory. limit.,

i i

l Nuclear Fuel Services-124 70-143 HEU 08/24/88 1,334 The ID was within its regulatory limit.

(Erwin, Tenn.)

376 The ID was within its HEU 10/26/88 desired range.

HEU 12/27/88 253 The ID was within its desired range.

HEU 02/28/89

-575 The'ID was within its i

desired' range.

l HEU 05/02/89 326 The ID.was within its desired range.

i HEU 06/27/89

-808 The~ID was within its desired range.

LEU 07/06/88

--3,113 The ID.was.within its i

I desired range.

I LEU 12/08/88

-182 The ID was within its desired range.

LEU 06/13/89 989 The ID was within its 1

desired range.

UNC Naval Products 368 70-371 HEU 07/15/88

-257 The ID was within its 3

-desired range.

-(Montville,HConn.)

09/16/88

.53-The ID was within its 7

HEU desired range.

HEU

-11/18/88 112 The ID wae'within its

' desired range.

l 10

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7._

Tabulation of Inventory Differences (Cont.1 Inventory SNM Difference License. Docket SNM Inventory. (Grams U-235, Licensee No.

No.

Category _ Date U-233 or Pu)

Explanation UNC Naval Products 368 70-371 HEU 01/13/89 15 The ID was within its (Montville, Conn.)

desired range.-

[ Cont. from previous page)

HEU 03/10/89

.25 The ID was within its desired range.

HEU 05/12/89 14 The'ID was within its.

~

desired range.

.3 Wastinghouse Eleo. Ccrp.

1107 70-1151 LEU 12/27/88 15,370' The ID was'within ite desired range.

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BJBLIOGRAPHIC DATA SHEET i

tsco inn,oc,en,,n,,,e,m,m NUREG-0430

?. Tillt AW SUB HTLE Vol. 9, No. 2 j

Licensed Fuel Facility Status Report i

Inventory Difference Data l

July 1988 - June 30, 1989 8

^""'""'""'".'a Mun l

u April 1990

4. F tN oH GR ANT NUYBE R 1

f b AUlHOfttsf

6. TYPE of REPORT Status Summary Report L Pt R DUD COVk R s J renetusovr Derre

.(

July 1988 - June 1989 O. PL R F 0RMiNG ORG ANIZ AT l0N - N AML AND ADO 't SS tu nec. provoce or,avsn ortwo or nee,on. v.s Nucmar Resuratory commnsoon, and maanne aunsren a conerator hemt Ond m&oltne OddrFDLl

'j Office of Nuclear Material Safety and Safeguards.

U.S. Nuclear Regulatory Commission l

Washington, DC 20555

9. SPON RING G AN1% ATloN - N AME AND ADDR LSS tot Nac type "some as aseve~ a cor,rractor. pro,aw mac o,,uunn, orrer or neeme. us Nueirer noeuterary commavon.

Same as 8, above.

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10. SUPPLEME NT ARY NOTES i~

11. ABS T RACT (?oo orm or mars s

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NRC is committed to the periodic publication of licensed fuel facilities. inventory difference data, following agency review of the infc tion and completion of any i<

related NRC investigations. Information in this re,

. includes inventory difference i-data for active fuel fabrication facilities possessing more than one effective kilogram of high enriched uranium, low enriched uranium, plutonium, or uranium-233.

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12. K E Y WORDS/DEbCH:P TORS (tur worgi orparenes ras wat asme rmarraers m awarme rne report J n AVAumuiv 51 AiWhi nuclear fuel facilities unlimited inventory difference data a stcum a uamic,u un linn Payel unclassified Ithen Neoorst unclassified

)i Ib. NUMSEH OF PAGES 16.PHICE NRC FORM 33517 496 1

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