The findings of the National System of Safeguards of Japan from its safeguards activities
in 2017 are as follows;
It was confirmed by the safeguards activities conducted by the Nuclear Regulation
Authority in 2017 that all nuclear material in Japan were properly accounted for and
controlled by its licensees.
Attachment 1: Safeguards Activities in Japan in 2017
Attachment 2: Inventory and Inventory changes of Nuclear Material in Japan
* Records in 2016 are shown in parentheses for comparison.
* Under some categories, there is no facility subject to safeguards inspections. In such cases, "-" are inserted in respective cells.
1 Categorized in accordance with the Law for the Regulations of Nuclear Source Material, Nuclear Fuel Material and Reactors (Nuclear Reactor Regulation Law).23 Number of facilities and LOFs where national inspections were conducted in 2017.
4 Domestic inspections are normally conducted simultenously with the IAEA inspections.
5 Nuclear Material Control Center (NMCC) is designated to carry out domestic inspections under the Nuclear Reactor Regulation Law (Art.61-23-2).
6 Only those who use Nuclear Fuel Material.
7 All licencees except the category of uranium concentration shall have approved accounting provisions to account for and control internationally controled material (incl. nuclear material) properly.
8 All licencees except the category of uranium concentration shall submit accounting reports.
9 Nuclear material accounting and control is not required, and this type of facilities are not subject to safeguards inspection.
10 Nuclear material is exempted from safeguards.1112
62 (64)
139 (136)
52 (62)
86 (83) 70 (67)
8 (16)
15 (8)
18 (25)
75 (76) 89 (96)
8 (8)
22 (23)
62 (64)
- (-) - (-) - (-)
9 (9) 11 (11)
0 (3)
46 (67) 83 (135)
52 (70) 101 (163)
13 (17)
3,493 (3,507)
4,630 (4,660) 485 (486) 327 (334) 325 (333) 3,493 (3,507)
3,493 (3,507)
31 (32)N/A- (-)
4 (4) 0 (0) 2 (2) 2 (2)
- (-) - (-) - (-) - (-)
42 (42) 36 (36) 3 (3) 3 (3)
8 (8)
22 (23)
10 (10) 0 (1) - (2) - (0) - (2) 11 (12)
783 (794) 347 (350) 219 (223) 217 (221)
1 (0) 1 (0)
29 (20) 0 (0) 29 (20)
0 (0) - (-) - (-) - (-) - (-)
209 (209) 35 (29) 332 (334) 1 (1) 331 (333)
0 (0)
6 (6) 6 (6) 301 (323) 12 (13) 289 (310)
22 (22)
Total 97 (100) 134 (141)
5 (3)
3 (3) 3 (3) 792 (861) 0 (3) 792 (858)
0 (0) - (-) - (-) - (-) - (-)
0 (0) 148 (170)
Design Information Verification11Complementary Access12
2 Design Information Verification (DIV) and Complementary Access (CA)
Number of in the field for
verifications
Person-days of in the field for
verifications
The IAEA simultaneously with JSGO, conducts DIVs based on safeguards agreement to verify the correctness and completeness of the design information of facilities provided to the IAEA.
The IAEA conducts CAs based on additional protocol to the safeguards agreement to confirm the absense of undeclared nuclear material and activities. MOFA staff and JSGO inspectors accompany the IAEA inspectors at CAs.
22 (24) 45 (45)
Minor Users (Non-Nuclear Use)6
N/A10
N/A10N/ATotal
1,780 (1,790)
2,089 (2,099) 117 (113) 1,709 (1,860) 1,696 (1,843)
46 (67)
47 (67)N/A9N/A9
Reprocessing
Disposal
Various users (R&D etc.)
Minor Users (Nuclear Use)
16 (16) 107 (150) 0 (0) 107 (150)
57 (57) 55 (56) 148 (170)
2 (2)
Nuclear Fuel Fabrication
Research Reactor
Power Reactor
Power reactor under R&D stage
Storage
Uranium Concentration N/A9N/A9N/A
2 (2)
When counting the number of facilities and LOFs, the categorization of IAEA safeguards implementation is followed. The categorization does not always correspond with the categorization of domestic regulation.
Minor users are licenced to use natural and/or depleted uranium up to 300g and/or thorium up to 900g.
Safeguards Activities in Japan in 2017
Categories under legal system
for nuclear regulation1Number of facilities and LOFs2Person-days of national inspection4Number of actions taken based on the regulation for functioning SSAC
Licence grantedforminor users of
nuclear material
Approval of accounting
provisions7 Number of accounting reports submitted8Total Total ICR MBR PIL
Biannual
reports from
minor users
Recepients of
national
inspections3
Total
Conducted byJSGOinspectors
Conducted by
NMCC5
inspectors
Initial
approval
Amendment
approval
1Summary of Safeguards Activities under the National System of Safeguards of Japan
Attachment 1
Inventory and Inventory changes of
Nuclear Material in Japan
1Major inventory changes in 2017
Import
No transfer
MOX Fuel
Fabrication
Uranium Re-conversion
&
Uranium fuel fabrication
Enrichment
Reprocessing
Power
Reactor
Fast Breeder Reactor
&
Advanced Thermal Reactor
Research Reactor
&
Critical Assembly
Uranium Concentration
&
Conversion
EU 89t
(192 FAs)
No transfer
No transfer
Note1: Monju, Fugen, Joyo and
their associated facilities
of JAEA*
Note2: Plutonium Fuel Production
Facility (PFPF), Plutonium fuel
development center Plutonium
Fuel Facility (PPFF) &
Tokai Research and
Development Facility of JAEA*
Export
Exported to:
No transfer
・Facilities are categorized according to the stages of nuclear fuel cycle.
This categorization does not correspond to regulatory categorization.
Each stage includes not only main facilities, but also their associated facilities.
Inventory is based on the weight of elements as of 31 December 2017.
More than 1kg of Pu, and more than 1t of another elements are described.
Pu 49kg
NU: Natural Uranium
DU: Depleted Uranium
Th: Thorium
EU: Enriched Uranium
Pu: Plutonium
FAs: Number of Fuel AssembliesUSEU 20t
Imported from:
ImportFRDU 6t
Pu 703kg
Imported from:
NU 41t
DU 59t
Th 4t
EU 35t
Pu 158kg
DU 105t
EU 8t
Pu 5,046kg
NU 20t
DU 19t
EU 25t
Pu 3,857kg
NU 72t
DU 0t
EU 12t
NU 380t
DU 11,801t
EU 223t
NU 90t
DU 54t
EU 1,308t
NU 431t
DU 3,229t
EU 17,170t
Pu 139,562kgNUDUEUPu2597
3,472
30,728tttkg
No transfer
US FR UK CA DE Total
NU - - - 8t - 8t
DU - 0t - - - 0t
EU 42t 41t 43t - 11t 136t
(16 FAs)
Attachment 2
Natural
uranium
Depleted
uranium
Thorium Plutonium
(t) (t) (t) U(t) U-235(t) (kg)
Uranium Concentration - - - - - -
470 11,852 0 1,531 62 -
(556) (11,768) (0) (1,495) (60) (-)
31 63 0 34 2 1,842
(31) (63) (0) (34) (2) (1,842)
430 3,228 - 17,170 372 139,562
(430) (3,222) (-) (17,082) (369) (138,609)
Power Reactor - 95 - 3 0 3,323
under R&D stage (-) (95) (-) (3) (0) (3,323)
Storage - - - - - -
2 597 0 3,472 33 30,728
(2) (597) (0) (3,472) (33) (30,785)
Disposal - - - - - -
122 239 5 48 1 3,938
(122) (239) (4) (49) (1) (3,889)
Minor Users 0 0 0
(Nuclear Use) (0) (0) (0)
Minor Users 0 0 0
(Non-Nuclear Use) (0) (0) (0)
1,055 16,075 5 22,258 470 179,393
(1,142) (15,984) (5) (22,135) (465) (178,448)
* Figures are based on the data as of 31 December, 2017. For comparison, corresponding data as of 31 December, 2016 are provided in parantheses below.
2 Due to rounding, total figure may not correspond to the sum of figures above.
Total2 Categories of Nuclear
Material1
Categories
under legal system
for nuclear regulation1
Enriched uranium
Nuclear Fuel Fabrication
Research Reactor
Power Reactor
Various users (R&D etc.)
Reprocessing
2 Nuclear Material Inventory by facility types
Regulation Law) and the relevant cabinet order.
1 Categorized in accordance with the Law for the Regulations of Nuclear Source Material, Nuclear Fuel Material and Reactors (Nuclear Reactor
As of 31 December 2017
U(t) U-235(t)
96 3,692 1 16,047 328 129,223
(93) (3,692) (1) (16,005) (327) (128,306)
13 447 0 2,317 49 18,642
(13) (447) (0) (2,275) (47) (18,648)
36 6,505 0 6,020 103 57,340
(54) (6,482) (0) (5,973) (100) (56,660)
712 5,247 0 5,672 106 52,277
(780) (5,179) (0) (5,643) (105) (51,344)
22 1,028 - 4,007 86 29,540
(25) (1,025) (-) (3,997) (86) (29,559)
27 253 - 278 7 2,046
(27) (253) (-) (278) (7) (2,046)
49 6,506 0 8,039 184 19,376
(67) (6,484) (0) (7,918) (178) (18,686)
- - - 37 1 -
(-) (-) (-) (23) (1) (-)
- - - - - -
(-) (-) (-) (-) (-) (-)
- - - - - -
(-) (-) (-) (-) (-) (-)
- - - - - -
(-) (-) (-) (-) (-) (-)
- - - 67 3 -
(-) (-) (-) (67) (3) (-)
- - - - - -
(-) (-) (-) (-) (-) (-)
- - - - - -
(-) (-) (-) (-) (-) (-)
- - - - - -
1 2 - 0 0 1
(1) (2) (-) (0) (0) (1)
193 2,051 4 361 9 3,782
(193) (2,054) (4) (372) (10) (3,767)
Multiple agreements sometimes apply to the same nuclear material. In such cases, the material is counted in multiple times.
* Records in 2016 are shown in parentheses below for comparison.
2 "Agreement between the governmment of Japan and the government of India for cooperation in the peaceful uses of nuclear energy"
has entered into force on July 21, 2017.IAEAOther
India2Plutonium
(kg)
Depleted
Uranium
(t)
Enriched Uranium
Turkey
United Arab Emirates
Thorium
(t)
Republic of Korea
3 Inventory of nuclear material subject to bilateral nuclear cooperation agreements
1 Categorized in accordance with the Law for the Regulations of Nuclear Source Material, Nuclear Fuel Material and Reactors (Nuclear Reactor Regulation Law)
and the relevant cabinet order.
* This table shows the weight of nuclear material subject to each bilateral nuclear cooperation agreement or agreement on the supply of uranium from the IAEA. EURATOM
Kazakhstan
Natural Uranium
(t)
United States of America
United Kingdom of Great Britain
and Northern Ireland
Viet Nam
Jordan
France
Canada
Russia
Australia
China
Categories of
Nuclear Material1
Supplying Party