# The Nuclear Safeguards (EU Exit) Regulations 2019, Part 4: PHYSICAL INVENTORY LISTING (PIL)

Extent: E+W+S+N.I.

Label/Tag
Content
Comments
#
MBA
Character (4)
MBA code of reporting MBA
1
Report type
Character (1)
P for physical inventory listings
2
Report date
DDMMYYYY
Date on which the report was completed
3
Report number
Number (8)
Sequential number, no gaps
4
PIT date
DDMMYYYY
Date on which the physical inventory was taken
5
Line count
Number (8)
Total number of lines reported
6
Reporting person
Character (30)
Name of person responsible for report
7
PIL_ITEM_ID
Number (8)
Sequential number
8
Batch
Character (20)
Unique identifier for a batch of qualifying nuclear material
9
KMP
Character (1)
Key measurement point
10
Measurement
Character (1)
Measurement code
11
Element category
Character (1)
Category of qualifying nuclear material
12
Material form
Character (2)
Material form code
13
Material container
Character (1)
Material container code
14
Material state
Character (1)
Material state code
15
Line number
Number (8)
Sequential number, no gaps
16
Items
Number (6)
Number of items
17
Element weight
Number (24.3)
Element weight
18
Isotope
Character (1)
G for U-235, K for U-233, J for a mixture of U-235 and U-233
19
Fissile weight
Number (24.3)
Weight of fissile isotope
20
Obligation
Character (2)
Safeguards obligation
21
Document
Character (70)
Operator-defined reference to supporting documents
22
Container ID
Character (20)
Operator-defined identifier for the container
23
Correction
Character (1)
D for deletions, A for additions forming part of a deletion/addition pair, L for late lines (stand-alone additions)
24
Previous report
Number (8)
Report number of line to be corrected
25
Previous line
Number (8)
Line number of line to be corrected
26
Comment
Character (256)
Operator comment
27
CRC
Number (20)
Hash code of line for quality control purposes
28
Previous CRC
Number (20)
Hash code of line to be corrected
29
Explanatory notes
1.
MBA:
Code of the reporting material balance area. This code is notified to the qualifying nuclear facility concerned by the ONR.
2.
REPORT TYPE:
P for physical inventory listings.
3.
REPORT DATE:
Date on which the report was completed.
4.
REPORT NUMBER:
Sequential number, no gaps.
5.
PIT DATE:
Day, month and year when the physical inventory was taken, reflecting the situation at 24.00.
6.
LINE COUNT:
Total number of lines reported.
7.
REPORTING PERSON:
Name of person responsible for report.
8.
PIL_ITEM_ID:
Sequential number, common to all PIL lines related to the same physical object.
9.
BATCH:
If batch follow-up is required in the particular safeguard provisions, the batch designation previously used for the batch in an inventory change report or in a previous physical inventory listing must be used.
10.
KMP:
Key measurement point. The codes are notified to the qualifying nuclear facility concerned in the particular safeguard provisions or otherwise in writing. If no code has been specified, ‘&’ should be used.
11.
MEASUREMENT:
The basis on which the quantity of qualifying nuclear material reported was established has to be indicated. One of the following codes must be used:
Measured
Estimated
Explanation
M
E
In the reporting material balance area.
N
F
In another material balance area.
T
G
In the reporting material balance area when the weights have already been given in a previous inventory change report or physical inventory listing.
L
H
In another material balance area when the weights have already been given in a previous inventory change report or physical inventory listing for the present material balance area.
12.
ELEMENT CATEGORY:
The following codes must be used:
Category of qualifying nuclear material
Code
Plutonium
P
High enriched uranium
(20% enrichment and above)
H
Low enriched uranium
(higher than natural and less than 20% enrichment)
L
Natural uranium
N
Depleted uranium
D
Thorium
T
13.
MATERIAL FORM:
The following codes must be used:
Main type of material form
Subtype
Code
Ores
OR
Concentrates
YC
Uranium hexafluoride (UF6)
U6
Uranium tetrafluoride (UF4)
U4
Uranium dioxide (UO2)
U2
Uranium trioxide (UO3)
U3
Uranium oxide (U3O8)
U8
Thorium oxide (ThO2)
T2
Solutions
Nitrate
LN
Fluoride
LF
Other
LO
Powder
Homogeneous
PH
Heterogeneous
PN
Ceramics
Pellets
CP
Spheres
CS
Other
CO
Metal
Pure
MP
Alloys
MA
Fuel
Rods, pins
ER
Plates
EP
Bundles
EB
Assemblies
EA
Other
EO
Sealed sources
QS
Small quantities/samples
SS
Scrap
Homogeneous
SH
Heterogeneous (clean-outs, clinkers, sludges, fines, other)
SN
Solid waste
Hulls
AH
Mixed (plastics, gloves, papers, etc.)
AM
Contaminated equipment
AC
Other
AO
Liquid waste
Low active
WL
Medium active
WM
High active
WH
Conditioned waste
Glass
NG
Bitumen
NB
Concrete
NC
Other
NO
14.
MATERIAL CONTAINER:
The following codes must be used:
Type of container
Code
Cylinder
C
Pack
P
Drum
D
Discrete fuel unit
S
Bird cage
B
Bottle
F
Tank or other container
T
Other
O
15.
MATERIAL STATE:
The following codes must be used:
State
Code
Fresh qualifying nuclear material
F
Irradiated qualifying nuclear material
I
Waste
W
Irrecoverable qualifying nuclear material
N
16.
LINE NUMBER:
Sequential number starting with 1 in each report, no gaps.
17.
ITEMS:
Each physical inventory line must indicate the number of items involved. If a group of items belonging to the same batch are reported as several lines, the sum of the number of items reported must equal the total number of items in the group. If the lines involve more than one element category, the number of items should be declared in the line(s) for the element category of highest strategic value only (in descending order: P, H, L, N, D, T).
18.
ELEMENT WEIGHT:
The weight of the element category referred to in field 12 must be reported. All weights must be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places.
19.
ISOTOPE:
This code indicates the fissile isotopes involved and should be used when the weight of fissile isotopes is reported. Use the code G for U-235, K for U-233, and J for a mixture of U-235 and U-233.
20.
FISSILE WEIGHT:
Unless otherwise stated in the particular safeguard provisions, the weight of fissile isotopes must only be reported for enriched uranium and category changes involving enriched uranium. All weights must be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places.
21.
OBLIGATION:
Indication of any additional obligation assumed by the United Kingdom under a relevant international agreement, to which the qualifying nuclear material is subject (regulation 19). Regulation 19(4) governs the making available of appropriate codes by the ONR.
22.
DOCUMENT:
Operator-defined reference to supporting document(s).
23.
CONTAINER ID:
Operator-defined container number. Optional data element which can be used in those cases where the container number does not appear in the batch designation.
24.
CORRECTION:
Corrections have to be made by deleting the wrong line(s) and adding the correct one(s), where appropriate. The following codes must be used:
Code
Explanation
D
Deletion. The line to be deleted must be identified by indicating in field 25 the report number (4), in field 26 the line number (16) and in field 29 the CRC (28) which were declared for the original line. Other fields need not be reported.
A
Addition (forming part of a deletion/addition pair). The correct line must be reported with all data fields including the ‘previous report’ field (25) and the ‘previous line’ field (26). The ‘previous line’ field (26) must contain the line number (16) of the line being replaced by the deletion/addition pair.
L
Late line (stand-alone addition). The late line to be added must be reported with all data fields, including the ‘previous report’ field (25). The ‘previous report’ field (25) must contain the report number (4) of the report in which the late line should have been included.
25.
PREVIOUS REPORT:
Indicate the report number (4) of the line to be corrected.
26.
PREVIOUS LINE:
For deletions, or additions forming part of a deletion/addition pair, indicate the line number (16) of the line to be corrected.
27.
COMMENT:
Free-text comment field for short comments by operator.
28.
CRC:
Hash code of line for quality control purposes. The ONR must inform the operator of the algorithm to be used.
29.
PREVIOUS CRC:
Hash code of the line to be corrected.
GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS
If, on the date the physical inventory was taken, there was no qualifying nuclear material in the material balance area, only labels from 1 to 7, 16, 17 and 28 above should be completed on the report.
General remarks 2, 3, 4, 5 and 6 at the end of Part 2 apply to this Part as appropriate.
This form, duly completed and signed, must be sent to the ONR in accordance with regulation 35.

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Source: https://www.legislation.gov.uk/uksi/2019/196/schedule/1/part/4 (the official version)
Page: https://openlegislation.uk/nuclear-safeguards-eu-exit-regulations-2019/schedule-1/part-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.