Commission Regulation (Euratom) 2025/974 Annex III

Annex III

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Annex III

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ANNEX III

INVENTORY CHANGE REPORT (ICR)

Header

Label/tag	Content	Comments	#
MBA	Character (4)	MBA code of reporting MBA	1
Report type	Character (1)	I for Inventory Change Report	2
Report date	Date (DDMMYYYY)	Date on which the report was completed	3
Report number	Number	Sequential number, no gaps	4
Line count	Number	Total number of lines reported	5
Start report	Date (DDMMYYYY)	Date of first day in reporting period	6
End report	Date (DDMMYYYY)	Date of last day in reporting period	7
Reporting person	Character (64)	Name of person responsible for the report	8

Entries

Label/tag	Content	Comments	#
Transaction ID	Number	Sequential number	9
IC code	Character (2)	Type of inventory change	10
Batch	Character (20)	Unique identifier for a batch of nuclear material	11
KMP	Character (1)	Key measurement point	12
Measurement	Character (1)	Measurement code	13
Material form	Character (2)	Material form code	14
Material container	Character (1)	Material container code	15
Material state	Character (1)	Material state code	16
Shipper MBA	Character (4)	MBA code of shipping MBA (for IC codes RD and RF only)	17
Receiver MBA	Character (4)	MBA code of receiving MBA (for IC codes SD and SF only)	18
Previous batch	Character (20)	Name of previous batch (for IC code RB only)	19
Original date	Date (DDMMYYYY)	Accounting date of the line to be corrected (always of first line in correction chain)	20
PIT date	Date (DDMMYYYY)	Date of physical inventory taking (PIT) to which MUF adjustment refers (use with IC code MF only)	21
Line number	Number	Sequential number, no gaps	22
Accounting date	Date (DDMMYYYY)	Date on which the inventory change occurred or became known	23
Number of items	Number	Number of items	24
Element category	Character (1)	Category of nuclear material	25
Element weight	Number (24,3)	Element weight	26
Isotope	Character (1)	G for U-235, K for U-233, J for a mixture of U-235 and U-233	27
Fissile weight	Number (24,3)	Weight of fissile isotope	28
Isotopic composition	Number (24,3) (for each isotope)	U, Pu isotopic weights (only if agreed in particular safeguard provisions)	29
Obligation	Character (5)	Safeguard obligation	30
Previous element category	Character (1)	Previous element category of nuclear material (use for IC codes CB, CC and CE only)	31
Previous obligation	Character (5)	Previous obligation (use for IC codes BR, CR, PR and SR only)	32
Shipper CAM code	Character (8)	Code to identify the shipping small holder	33
Receiver CAM code	Character (8)	Code to identify the receiving small holder	34
Document	Character (70)	Operator-defined reference to supporting documents	35
Container ID	Character (20)	Operator-defined identifier for the container	36
Correction	Character (1)	D for deletions, A for additions forming part of a deletion/addition pair, L for late lines (stand-alone additions)	37
Previous report	Number	Report number of line to be corrected	38
Previous line	Number	Line number of line to be corrected	39
Comment	Character (256)	Operator comment	40
Burn-up	Number	Burn-up in MWdays/tonne (use for IC codes NL and NP in nuclear reactors only)	41
CRC	Number	Hash code of line for quality control purposes	42
Previous CRC	Number	Hash code of line to be corrected	43
Advance notification reference code	Character (12)	Reference code used for the advance notification sent to Euratom (use for IC codes RD, RF, SD and SF only)	44
Campaign	Character (12)	Campaign identifier for reprocessing installations	45
Reactor	Character (12)	Reactor code for reprocessing campaigns	46
Safeguards info	Character (256)	Code for communicating additional information	47

Explanatory notes

1.	MBA: Code of the reporting material balance area. This code is notified to the installation concerned by the Commission.

2.	Report type: I for inventory change reports.

3.	Report date: Date on which the report was completed.

4.	Report number: Sequential number used for inventory change reports, material balance reports and physical inventory listings, no gaps.

5.	Line count: Total number of lines reported.

6.	Start report: Date of first day of reporting period.

7.	End report: Date of last day of reporting period.

8.	Reporting person: Name of the person responsible for the report.

9.	Transaction ID: Sequential number. This is used to identify all inventory change lines relating to the same physical transaction.

10.

IC code: One of the following codes shall be used:

Keyword	Code	Explanation
Receipt	RD	Receipt of nuclear material from a material balance area within the European Union.
Import	RF	Import of nuclear material from a third country.
Receipt from non-safeguarded activity	RN	Receipt of nuclear material from a non-safeguarded activity (Article 39).
Shipment	SD	Transfer of nuclear material to a material balance area within the European Union.
Export	SF	Export of nuclear material to a third country
Shipment to non-safeguarded activity	SN	Transfer of nuclear material to a non-safeguarded activity (Article 39).
Transfer to conditioned waste	TC	Nuclear material contained in waste that is measured or estimated on the basis of measurements, and which has been conditioned in such a way (e.g. in glass, cement, concrete or bitumen) that it is not suitable for further nuclear use. Installations may be authorized to use this code based on a reasoned and justified request and agreed reporting modalities. Separate records shall be kept for this type of material.
Transfer to a geological disposal area	TG	Transfer of nuclear material which is neither considered as retained nor as conditioned waste into a geological disposal area. Installations may be authorized to use this code based on a reasoned and justified request and agreed reporting modalities.
Discards to the environment	TE	Nuclear material that is measured or estimated on the basis of measurements, and which has been irrevocably discarded to the environment as the result of a planned discharge (Article 36(1)(a)).
Transfer to retained waste	TW	Nuclear material generated from processing or from an operational accident contained in waste that is measured or estimated on the basis of measurements, and which has been transferred to a specific location within the material balance area from which it could be retrieved and which is deemed to be not recoverable for the time being. Separate records shall be kept for this type of material.
Retransfer from conditioned waste	FC	Retransfer of conditioned waste to the inventory of the material balance area. This applies whenever conditioned waste undergoes processing.
Retransfer from a geological disposal area	FG	Retrieval of nuclear material from a geological disposal area after it was declared as transfer to that geological disposal area. Use of this code requires a special report to be sent to the Commission.
Retransfer from retained waste	FW	Retransfer of retained waste to the inventory of the material balance area. This applies whenever retained waste is retrieved from the specific location within the material balance area to which it had been transferred, either for any processing in the material balance area or for any shipment from the material balance area.
Accidental loss	LA	Irretrievable and inadvertent loss of a quantity of nuclear material as the result of an operational accident. Use of this code requires a special report to be sent to the Commission.
Accidental gain	GA	Nuclear material unexpectedly found, except when detected in the course of a physical inventory taking. Use of this code requires a special report to be sent to the Commission.
Decommissioning gain	GD	Nuclear material arising during decommissioning activities or exceptional operations. Installations may be authorized to use this code based on a reasoned and justified request.
Category change	CE	Accountancy transfer of a quantity of nuclear material from one category (Article 21) to another as a result of an enrichment process (only one line to be reported per category change).
Category change	CB	Accountancy transfer of a quantity of nuclear material from one category (Article 21) to another as a result of a blending operation (only one line to be reported per category change).
Category change	CC	Accountancy transfer of a quantity of nuclear material from one category (Article 21) to another for all types of category change, such as during irradiation or for exceptional and justified reasons, which are neither covered by codes CE and CB (only one line to be reported per category change) nor a correction.
Rebatching	RB	Accountancy transfer of a quantity of nuclear material from one batch to another (only one line to be reported per rebatching).
Change in particular obligation	BR	Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), to balance the total uranium stock following a blending operation (only one line to be reported per change of obligation).
Change in particular obligation	PR	Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), used when nuclear material enters or leaves an accountancy pool (only one line to be reported per change of obligation).
Change in particular obligation	SR	Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), following an obligation exchange or a substitution (only one line to be reported per change of obligation). The use of this code requires prior authorization (Article 20(1)).
Change in particular obligation	CR	Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), for all cases not covered by codes BR, PR or SR (only one line to be reported per change of obligation).
Nuclear production	NP	Increase in the quantity of nuclear material due to nuclear transformation.
Nuclear loss	NL	Decrease in the quantity of nuclear material due to nuclear transformation.
Shipper/receiver difference	DI	Shipper/receiver difference.
New measurement	NM	Quantity of nuclear material, in one particular batch, accounted for in the nuclear material balance area, being the difference between a newly measured quantity and the quantity formerly accounted for, and which is neither a shipper/receiver difference nor a correction.
Material unaccounted for	MF	Book adjustment for material unaccounted for. Shall be equal to the difference between the ending physical inventory (PE) and the ending book inventory (BA) reported in the material balance report (Annex IV). The original date shall be that of the physical inventory taking, while the accounting date shall be after the date of the physical inventory taking.
Roundings	RA	Rounding adjustment to make the sum of the quantities reported in a given period coincide with the ending book inventory of the material balance area.
Isotope adjustment	R5	Adjustment to make the sum of the isotope quantities reported coincide with the ending book inventory for U-235 of the material balance area.
Material production	MP	Quantity of nuclear material, obtained from substances originally not subject to safeguards, which has become subject to safeguards because its concentration now exceeds the minimum levels.
Termination of use	TU	Quantity of nuclear material considered as irrecoverable for practical or economic reasons which is incorporated in end products used for non-nuclear purposes (Article 36(1)(b)). The use of this code requires prior authorization.
Termination of safeguards	TZ	Quantity of nuclear material considered as irrecoverable for practical or economic reasons which is contained in waste in very low concentrations measured or estimated on the basis of measurements, even if these materials are not disposed of (Article 36(1)(c)). Installations may be authorized to use this code based on a reasoned and justified request and agreed reporting modalities.
Ending book inventory	BA	Book inventory at the end of a reporting period and at the PIT date, separate for each category of nuclear material and for each particular safeguard obligation.

11.	Batch: The batch designation may be chosen by the operator, but: in the case of the inventory change ‘Receipt (RD)’, the batch designation used by the shipper shall be reported; a batch designation shall not be used again for another batch in the same material balance area.

12.	KMP: Key measurement point. The codes are notified to the installation concerned and listed in the particular safeguard provisions. If no specific codes have been notified, ‘&’ shall be used.

13.

Measurement: The basis on which the quantity of nuclear material reported was established has to be indicated. One of the following codes shall 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.

14.

Material form: The following codes shall 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
Powder	Heterogeneous	PN
Ceramics	Pellets	CP
	Spheres	CS
	Other	CO
Metal	Pure	MP
Metal	Alloys	MA
Fuel	Rods, pins	ER
	Plates	EP
	Bundles	EB
	Assemblies	EA
	Other	EO
Sealed sources		QS
Small quantities/samples		SS
Scrap	Homogeneous	SH
Scrap	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

15.

Material container: The following codes shall be used:

Type of container	Code
Cylinder	C
Pack	P
Drum	D
Discrete fuel unit	S
Bird cage	B
Bottle	F
Tank	T
Other	O

16.

Material state: The following codes shall be used:

State	Code
Fresh nuclear material	F
Irradiated nuclear material	I
Waste	W
Irrecoverable material	N

17.

Shipper MBA: Use only for inventory change codes RD and RF. For inventory change code RD, the code of the shipping material balance area is reported. If this code is unknown, the code ‘F’ or ‘W’ (for the shipping MBA in France or a non-nuclear-weapon State) is reported and the shipper’s full name and address shall be entered in the comment field (40). For inventory change code RF, the country code of the exporting state, or the MBA code of the exporting installation if known, is reported, and the shipper’s full name and address shall be entered in the comment field (40).

18.

Receiver MBA: Use only for inventory change codes SD and SF. For inventory change code SD, the code of the receiving material balance area is reported. If this code is unknown, the code ‘F’ or ‘W’ (for the receiving MBA in France or a non-nuclear-weapon State) is reported and the receiver’s full name and address shall be entered in the comment field (40). For inventory change code SF, the country code of the importing state or the MBA code of the importing installation if known, is reported, and the receiver’s full name and address shall be entered in the comment field (40).

19.	Previous batch: Batch designation before rebatching. The batch designation after the rebatching shall be reported in field 11.

20.

Original date: In the case of a correction, the day, month and year when the line to be corrected was originally entered shall be reported. For correction chains, the original date is always the accounting date of the first line in the chain. For late lines (stand-alone additions), the original date is the date on which the inventory change occurred.

21.	PIT date: Date of the physical inventory taking as reported in the material balance report on which the book adjustment for MUF (material unaccounted for) is based. Use only with inventory change code MF.

22.	Line number: Sequential number starting with 1 in each report, no gaps.

23.	Accounting date: Date when the inventory change occurred or became known.

24.

Number of items: The number of items making up the batch shall be reported. If an inventory change consists of several lines, the sum of the number of items reported shall equal the total number of items belonging to the same transaction ID. If the transaction involves more than one element the number of items shall be declared in the line(s) for the element category of highest safeguards relevance only (in descending order: P, H, L, N, D, T).

25.

Element category: The following codes shall be used:

Category of nuclear material	Code
Plutonium	P
High enriched uranium (20 % enrichment and above)	H
Low enriched uranium (higher than natural but less than 20 % enrichment)	L
Natural uranium	N
Depleted uranium	D
Thorium	T

26.	Element weight: The weight of the element category referred to in field 25 shall be reported. All weights shall be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places.

27.

Isotope: This code indicates the fissile isotopes involved and shall be used when the weight of fissile isotopes is reported (28). The following codes shall be used:

Fissile isotope(s)	Code
Uranium-235	G
Uranium-233	K
A mixture of uranium-235 and uranium-233	J

28.

Fissile weight: Unless otherwise stated in the particular safeguard provisions, the weight of fissile isotopes shall only be reported for enriched uranium and category changes involving enriched uranium. All weights shall be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places.

29.

Isotopic composition: If agreed in the particular safeguard provisions the isotopic composition of U and/or Pu shall be reported in the format as a list of weights separated by semi-colons to denote the weight of U-233, U-234, U-235, U-236, U-238 or Pu-238, Pu-239, Pu-240, Pu-241, Pu-242. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places.

30.

Obligation: Indication of the particular safeguard obligation assumed by the Community under an Agreement concluded with a third country or an international organisation, to which the material is subject (Article 19). It may also correspond to a pool code, where authorised pursuant to Article 20. The Commission shall communicate the appropriate codes to the installations on request.

31.	Previous element category: Code of the element category of nuclear material before the category change. The corresponding code after the change shall be reported in field 25. Use only with the inventory change codes CE, CB and CC.

32.	Previous obligation: Code of the particular safeguard obligation to which the nuclear material was subject before the change. The corresponding obligation code after the change shall be reported in field 30. Use only with the inventory change codes BR, CR, PR and SR.

33.	Shipper CAM code: Code of installation of Annex I-N shipping material. The Commission shall communicate to the operator or entity the appropriate code. Simplified reporting procedures apply to these operators.

34.	Receiver CAM code: Code of installation of Annex I-N receiving material. The Commission shall communicate to the operator or entity the appropriate code. Simplified reporting procedures apply to these operators.

35.	Document: Operator-defined reference to supporting document(s).

36.	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.

37.

Correction: Corrections have to be made by deleting the wrong line(s) and adding the correct one(s), where appropriate. The following codes shall be used:

Code	Explanation
D	Deletion. The line to be deleted must either be: identified by indicating in field 38 the report number (4) and in field 39 the line number (22), as well as in field 43 the CRC (42) which were declared for the original line. Other fields need not be reported; or repeated in its entirety, except for the accounting date (23) which shall show the date on which the deletion was made in the accounting records. Fields may contain codes no longer in use under this Regulation
A	Addition (forming part of a deletion/addition pair). The correct line shall be reported with all data fields, including the ‘previous report’ field (38) and the ‘previous line’ field (39). The ‘previous line’ field (39) shall repeat the line number (22) of the line being replaced by the deletion/addition pair. The accounting date (23) shall show the date on which the addition was made in the accounting records
L	Late line (stand-alone addition). The late line to be added shall be reported with all data fields, including the ‘previous report’ field (38). The ‘previous report’ field (38) shall contain the report number (4) of the report in which the late line should have been included. The accounting date (23) shall show the date on which the late line was introduced in the accounting records

38.	Previous report: Indicate the report number (4) of the line to be corrected.

39.	Previous line: For deletions, or additions forming part of a deletion/addition pair, indicate the line number (22) of the line to be corrected.

40.	Comment: Free-text comment field for short comments by operator.

41.	Burn-Up: For inventory changes of type NP or NL in nuclear reactors, burn-up in MWdays/tonne.

42.	CRC: Hash code of line for quality control purposes. The Commission shall inform the operator of the algorithm to be used.

43.	Previous CRC: Hash code of the line to be corrected.

44.	Advance notification reference code: Reference code used for the advance notification. To be used with inventory codes SF, RF, SD and RD when so required (Articles 23 and 24).

45.	Campaign: Unique identifier for the reprocessing campaign. Use only for inventory changes in the process material balance area(s) of spent fuel reprocessing installations.

46.	Reactor: Unique identifier for the reactor from which irradiated fuel is being stored or reprocessed. Use only for inventory changes in spent fuel storage or reprocessing installations.

47.	Safeguards info: Additional information, if so required by the Commission.

GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS

In the case of transfer of nuclear material, the shipper shall provide the receiver with all the necessary information for the inventory change report.

If numerical data contain fractions of units, a point shall precede the decimal digits.

The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’.

Under Article 79 of the Treaty, those subject to safeguards requirements are to notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty.

Reports shall be prepared in xml format using the template provided by the Commission through a dedicated platform.

The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards.