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MINISTRY OF
SCIENCE AND TECHNOLOGY
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SOCIALIST REPUBLIC OF VIETNAM
Independence – Freedom – Happiness
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No. 30/2026/TT-BKHCN
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Hanoi, June 06, 2026
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CIRCULAR
LIST, LICENSING ORGANIZATIONS FOR DUAL-USE GOODS AND
MONITORING, EXTRACTION OF INFORMATION PERTAINING TO STRATEGIC TRADE CONTROL
WITHIN JURISDICTION OF THE MINISTRY OF SCIENCE AND TECHNOLOGY
Pursuant to the Law on
Government Organization No. 63/2025/QH15;
Pursuant to the Law on
Foreign Trade Management No. 05/2017/QH14;
Pursuant to Decree No.
55/2025/ND-CP of the Government on functions, tasks, powers, and organizational
structures of the Ministry of Science and Technology;
Pursuant to Decree No.
259/2025/ND-CP of the Government on strategic trade control;
At request of Director
of Department of Information Technology Industry;
The Minister of Science
and Technology promulgates list, licensing organizations for dual-use goods and
monitoring, extraction of information pertaining to strategic trade control
within jurisdiction of the Ministry of Science and Technology.
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The list of dual-use goods
under jurisdiction of the Ministry of Science and Technology (hereinafter
referred to as “List”) is prescribed under the Appendix attached hereto.
Article 2. Rules of
application of the List
1. Only goods of which HS
code, description, technical characteristics, and technology match those
prescribed under Appendix attached hereto are controlled by license of the
Ministry of Science and Technology in a manner compliant with Clause 2 Article
4 of Decree No. 259/2025/ND-CP on strategic trade control.
Where only 6-digit HS
codes are listed, all 8-digit HS codes contained therein are controlled; Where
8-digit HS codes are listed, only listed HS codes are controlled.
2. Export, temporary
import for re-export, transfer via border checkpoints, transport, transit of
goods under the List must conform to Decree No. 259/2025/ND-CP on strategic
trade control and applicable regulations on management of foreign trade,
commerce, tax, customs, and other field-specific laws.
Article 3. Issuance of
license to export, temporarily import and re-export, transfer via border
checkpoints, transport, and transit of dual-use goods under jurisdiction of the
Ministry of Science and Technology
1. The Ministry of Science
and Technology shall delegate provincial People’s Committees to issue license
to export, temporarily import and re-export, transfer via border checkpoints,
transport, and transit of dual-use goods under jurisdiction of the Ministry of
Science and Technology.
In respect of dual-use
goods that are radioactive materials and nuclear devices regulated by the
atomic energy laws, licensing shall conform to atomic energy laws and relevant
law provisions.
2. Applications and
procedures for issuance of license to export, temporarily import and re-export,
transfer via border checkpoints, transport, and transit of dual-use goods under
jurisdiction of the Ministry of Science and Technology shall conform to Article
9 of Decree No. 259/2025/ND-CP on strategic trade control.
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Article 4. Entry into
force
1. This Circular comes
into force from June 06, 2026.
2. Provincial People’s
Committees and Vietnam Agency for Radiation and Nuclear Safety have the
responsibility to send license issued to the applicants under Clause 1 Article
3 hereof to the Ministry of Science and Technology via national information
system on digital technology industry, to the Ministry of Industry and Trade
and customs authorities via field-specific online reporting system for joint
management.
3. Department of
Information Technology Industry has the responsibility to develop, maintain,
upgrade, and manage national information system for monitoring, extraction of
information on strategic trade control within jurisdiction of the Ministry of
Science and Technology.
4. Difficulties that arise
during implementation of this document should be reported to the Ministry of
Science and Technology (via Department of Information Technology Industry) in
writing./.
MINISTER
Vu Hai Quan
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LIST OF DUAL-USE GOODS UNDER JURISDICTION OF THE MINISTRY OF
SCIENCE AND TECHNOLOGY
(Attached to Circular No. 30/2026/TT-BKHCN dated June 6, 2026 of the
Ministry of Science and Technology)
No.
HS code
Article description
Technical, technology characteristics
Reference ECCN code
I
Radioactive materials
and nuclear devices
1.
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1.1
Uranium ore or
thorium ore and uranium concentrates or thorium concentrates
1.1.1
2612.10.00
Uranium ore and uranium
concentrates
Natural uranium,
depleted uranium, or thorium in the form of metal, alloy, chemical compound,
or concentrate, and any other material containing one or more of the
foregoing
0C001
1.1.2
2612.20.00
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Natural uranium,
depleted uranium, or thorium in the form of metal, alloy, chemical compound,
or concentrate, and any other material containing one or more of the
foregoing
0C001
1.2
Radioactive chemical
elements and radioactive isotopes (including radioactive elements and
isotopes capable of fissile or enrichment) and compounds of the foregoing;
mixtures and wastes containing products of the foregoing
1.2.1
Natural uranium and
compounds thereof; alloys, dispersants (including cermets), ceramic products
and compounds containing natural uranium or compounds of natural uranium:
1.2.1.1
2844.10.10
Natural uranium and
compounds thereof
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0C001
1.2.1.2
2844.10.90
Other
Natural uranium,
depleted uranium, or thorium in the form of metal, alloy, chemical compound,
or concentrate, and any other material containing one or more of the
foregoing
0C001
1.2.2
Uranium enriched in
U-235 and its compounds; plutonium and its compounds; alloys and dispersants
(including cermets), ceramic products and compounds containing uranium
enriched in U-235, plutonium or its compounds:
1.2.2.1
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Uranium enriched in
U-235 and its compounds; plutonium and its compounds
Special fissile
materials
0C002
1.2.2.2
2844.20.90
Other
Special fissile
materials
0C002
1.2.3
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1.2.3.1
2844.30.10
Uranium enriched in
U-235 and its compounds; thorium and its compound
Natural uranium,
depleted uranium, or thorium in the form of metal, alloy, chemical compound,
or concentrate, and any other material containing one or more of the
foregoing
0C001
1.2.3.2
2844.30.90
Other
Natural uranium,
depleted uranium, or thorium in the form of metal, alloy, chemical compound,
or concentrate, and any other material containing one or more of the
foregoing
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1.2.4
Radioactive elements,
radioactive isotopes, and compounds other than those under subheadings
2844.10, 2844.20, 2844.30; alloys, dispersants (including cermets), ceramic
products and mixtures containing the foregoing elements, isotopes, or
compounds; radioactive wastes:
1.2.4.1
2844.41.00
Tritium and its
compounds; alloys, dispersants (including cermets), ceramic products and mixtures
containing tritium or its compounds
Tritium, tritium
compounds, mixtures containing tritium in which the ratio of tritium to
hydrogen atoms exceeds 1 part in 1000, and products or devices containing any
of the foregoing.
Note:
Control a product or
device containing more than 1.48 x 103 GBq (40 Ci) of activity
1C235
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2844.42.00
Actinium 225, actinium
227, californium 253, curium 240, curium 241, curium 242, curium 243, curium
244, einsteinium 253, einsteinium 254, gadolinium 148, polonium 208, polonium
209, polonium 210, radium 223, uranium 230, or uranium 232 and their
compounds; alloys, dispersants (including cermets), ceramic products, and
mixtures containing the foregoing elements or compounds
Radio isotopes
appropriate making neutron sources based on alpha-n reaction in the following
forms:
a. Elemental;
b. Compounds having a
total activity of 37 GBq (1 curie) per kg or greater; or
c. Mixtures having a
total activity of 37 GBq (1 curie) per kg or greater;
d. Products or devices containing
any of the foregoing components.
Note:
Not control product
or device containing less than 3,7 GBq (100 mCi) of activity.
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1.2.4.3
2844.43.00
Other radioactive
elements, isotopes, and compounds; other alloys, other dispersants (including
cermets), ceramic products, and other compounds containing these elements,
isotopes, or mixtures
Other radioactive
elements, isotopes, and compounds; other alloys, other dispersants (including
cermets), ceramic products, and other compounds containing these elements,
isotopes, or mixtures
1C237
1C012.b
1.2.4.4
2844.50.00
Cartridges of spent fuel
(irradiated) of nuclear reactors
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0A001.c
2
Nuclear devices
2.1
Nuclear reactors and
accompanying devices
2.1.1
8401.10.00
Nuclear reactors
Nuclear reactors
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2.1.2
8401.40.00
Parts of nuclear
reactors
Including: Barrels,
control rods, fuel loaders and unloaders of reactors, pressurized tube
reactors, zirconium tubing, reactor coolant pumps
0A001.b
0A001.d
0A001.c
0A001.e
0A001.f
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2.1.3
8401.30.00
Non-irradiated nuclear
cartridges
Non-irradiated nuclear
cartridges
0C002
2.2
Uranium conversion
and enrichment
2.2.1
8401.20.00
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Including: Gas
centrifuge; parts specially designed for gas centrifuge; primary devices and
parts for enrichment; system devices, and parts designed or specially
designed for use in chemical exchange or ion exchange, laser, plasma
separation, electromagnetic enrichment plants
0B001.a.1
0B001.b.1
0B001.a.3
0B001.a.4
0B001.a.5
0B001.a.6
0B001.a.7
0B001.a.8
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0B001.b.1
0B001.b.10
0B001.b.11
0B001.b.12
0B001.b.13
2.2.2
8414.80
8417.10
8419.40
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Equipment for the
conversion of uranium and equipment specially designed or prepared for the
conversion of uranium concentrates to UO3
0B003.a
2.2.3
8414.80
8417.10
8419.40
System specially
designed or prepared for the conversion of UO3 to UF6
Equipment for the
conversion of uranium and equipment specially designed or prepared for the
conversion of UO3 to UF6
0B003.b
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8414.80
8417.10
8419.40
System specially
designed or prepared for the conversion of UO3 to UO2
Equipment for the
conversion of uranium and equipment specially designed or prepared for the
conversion of UO3 to UO2
0B003.c
2.2.5
8414.80
8417.10
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System specially
designed or prepared for the conversion of UO2 to UF4
Equipment for the
conversion of uranium and equipment specially designed or prepared for the
conversion of UO2 to UF4
0B003.d
2.2.6
8414.80
8417.10
8419.40
System specially
designed or prepared for the conversion of UF4 to UF6
Equipment for the
conversion of uranium and equipment specially designed or prepared for the
conversion of UF4 to UF6
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2.2.7
8414.80
8417.10
8419.40
System specially
designed or prepared for the conversion of UF4 to metallic uranium.
Equipment for the
conversion of uranium and equipment specially designed or prepared for the
conversion of UF4 to metallic uranium;
0B003.f
2.2.8
8414.80
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8419.40
System specially
designed or prepared for the conversion of UF6 to UO2
Equipment for the
conversion of uranium and equipment specially designed or prepared for the
conversion of UF6 to UO2
0B003.g
2.2.9
8414.80
8417.10
8419.40
System specially
designed or prepared for the conversion of UF6 to UF4
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0B003.h
2.3
Equipment for the
processing of used nuclear fuel
2.3.1
7310.29
8421.29
8465.91
8465.96
8479.89
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Equipment for
reprocessing of irradiated fuel rods, equipment, and components specially
designed or prepared for such a purpose.
0B006
2.4
Equipment for the
production of nuclear fuel
2.4.1
8207.30
8479.89
8514.40
8515.31
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Equipment for production
of nuclear fuel
Equipment making direct
contact with or directly processing or directly controlling nuclear fuel
stream in production
0B005
II
Electronic
1
8542.31.00
8542.39.00
Processors
(microprocessors, computer circuits, and control circuits) of which
processing performance is at least 5 GFLOPS and 32-bit arithmetic logic unit
(ALU) or higher.
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Note:
1. “Total processing
performance (TPP)” is 2 x MacTOPS x bit length of the operation, aggregated
over all processing units on the integrated circuit.
a. “MacTOPS” is the
theoretical peak number of tera (1012) operations per second for
multiply-accumulate computation, D=AxB+C).
b. The 2 in the
formula is based on the industry convention of counting one
multiply-accumulate computation, D=AxB+C, as 2 operations for the purpose of
datasheets. Therefore, 2 x MacTOPS may correspond to the reported TOPS or
FLOPS on a datasheet.
Bit length of the
operation for a multiply-accumulate computation is the largest bit-length of
the inputs to the multiply operation.
Aggregate the “TPPs”
for each processing unit on the integrated circuit to arrive at a total.
'TPP' = TPP1 + TPP2 +… + TPPn (where n is the number of processing units on
the integrated circuit).
The rate of ‘MacTOPS’
is to be calculated at its maximum value theoretically possible. The rate of
‘MacTOPS’ is assumed to be the highest value the manufacturer claims in a
manual or brochure for the integrated circuit. For example, the ‘TPP’
threshold of 6 000 can be met with 750 tera integer operations (or 2 x 375
‘MacTOPS’) at 8 bits or 300 tera FLOPS (or 2 x 150 ‘MacTOPS’) at 16 bits. If
the IC is designed for MAC computation with multiple bit lengths that achieve
different ‘TPP’ values, the highest ‘TPP’ value should be used.
3A501.a.16
2
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8542.39.00
Integrated circuits
designed to or evaluated to be able to tolerate high radiation.
Integrated circuits
designed to or evaluated to be able to tolerate high radiation in order to
tolerate any of the following:
a. Total ionizing dose
(TID) 5 x 103 Gy (Si) or higher;
b. Dose rate upset 5 x
106 Gy (Si)/s or higher; or
c. Neutron fluence (1
MeV equivalent) 5 x 1013 n/cm2 or higher on silicon or
equivalent in case of other materials.
Note: 3A001.a.1.c does not control metal insulator
semiconductors (MIS).
3A001.a.1
3
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2850.00.00
3818.00.00
Semiconductor substrates
or other preforms
High-resistivity
materials such as: silicon carbide (SiC), gallium nitride (GaN), aluminum
nitride (AlN), aluminum gallium nitride (AlGaN), gallium oxide (Ga2O3),
or diamond, or other preforms of those materials, having resistivities
greater than 10,000 ohm-cm at 20 °C.
3C005.a
4
3818.00.00
8541.90.00
Polycrystalline
substrates or polycrystalline ceramic substrates
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3C005.b
5
3707.10.00
3904.90
Positive photoresist
materials
Positive photoresist
materials designed for semiconductor photolithography, specially adjusted
(optimized) for use at wavelengths of 193 to 15 nm
3C002.a.1
III
Computer
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8471.30
8471.41
8471.49
8471.50
8471.90
Electronic computers
operating at extreme temperature range
Electronic computers
capable of operating at low temperature (below -45 oC) or high
temperature (above 85 oC).
Note:
Paragraph 4A001.a.1
does not control computers specially designed for automobiles, trains or
civil aircraft.
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2
8471.30
8471.41
8471.49
8471.50
8471.90
Electronic computers
designed to tolerate high radiation
Electronic computers
specially designed with radiation resistance to a level exceeding any of the
following specification:
a. Total Ionizing Dose
(TID) 5 x 103 Gy (Si) or higher;
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c. Single Event Upset: 1
× 10-8 error/bit/day;
Note:
Paragraph 4A001.a.2.
does not control computers specially designed for civil aircraft.
4A001.a.2
3
8471.30
8471.41
8471.49
8471.50
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Computers designed for
modeling, simulation, or integration of rockets.
Computers designed for
modeling, simulation, or integration of space launch vehicles specified in
9A004 or sounding rockets specified in 9A104.
Note: This paragraph only applies to equipment supplied with the
“software” referred to in paragraphs 7D103 or 9D103.
4A102
IV
Telecommunications,
sensor, and laser
1
8517.61.00
8517.62
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Telecommunications
equipment
Telecommunications
system and equipment specifically designed to tolerate any of the following:
- Effects of
electromagnetic pulse;
- Gamma ray, neutron or
ionic radiation;
- Low temperature (below
-55 oC) or high temperature (above 124 oC).
5A001.a
2
8517.61.00
8517.62
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8517.71.00
8517.79
Mobile
telecommunications interception or jamming equipment
Mobile
telecommunications interception or jamming equipment, and monitoring
equipment, as follows, and components specially designed therefor:
- Interception equipment
designed for the extraction of voice or data transmitted through the air
interface;
- Interception equipment
not specified in 5A001.f.1., designed for the extraction of identifiers for
customer devices or subscribers (e.g.: IMSI, TIMSI, or IMEI), signals, or
other metadata transmitted through the air interface;
- Jamming equipment
specially designed or modified to intentionally and selectively interfere
with, block, neutralize, impair or divert mobile telecommunications services,
and providing any of the following functions:
a. Simulation of the
functions of network equipment operating via radio access network;
b. Detection and
exploitation of the specific characteristics of the mobile telecommunications
protocol used (for example GSM); or
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- RF monitoring
equipment specially designed or modified to identify the use of items
specified in 5A001.f.1., 5A001.f.2. or 5A001.f.3.
5A001.f
3
8517.71.00
8517.79
8526.10
8526.91
8526.92.00
8529.10
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Telemetry and remote
control equipment
Telemetry and remote
control equipment, including ground equipment, designed or modified for
unmanned aerial vehicles (UAVs).
Note:
(1) Paragraph
5A101 defines the term 'missile' to mean complete rocket and unmanned aerial
vehicle system with a range of at least 300 km.
(2) Paragraph
5A101 does not control:
(a) Equipment
designed or modified for manned aircraft or satellites;
(b) Ground
equipment designed or modified for land or maritime applications;
(c) Equipment
designed for commercial, civil or safety of life GNSS services (e.g. data
integrity, flight safety).
5A101
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Magnetometers, magnetic
gradiometers, intrinsic magnetic gradiometers, underwater electric field
sensors
Note: Paragraph 6A006 does not control instruments specially
designed for fishing applications or for making biomagnetic measurements for
medical diagnostic purposes.
4.1
9015.80
Magnetometers
a) Magnetometers using
Superconducting Quantum Interference Device (SQUID) technology and having any
of the following characteristics:
- SQUID systems designed
for stationary operation, without subsystems, specially designed to reduce
noise in motion, and having a sensitivity equal to or less (better) than 50
fT (rms) per square root of Hertz at a frequency of 1 Hz; or
- SQUID systems having a
moving magnetometer sensitivity of less than (better than) 20 pT (rms) per
square root of Hertz at a frequency of 1 Hz and specially designed to reduce
moving noise;
b) Magnetometers using
optical pumping or nuclear precession (proton/Overhauser) technology, having
a sensitivity less than (better than) 20 pT (rms) per square root of Hertz at
a frequency of 1 Hz;
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d) Induction coil
magnetometers having a sensitivity less than (better than):
- 0,05 nT (rms) per
square root of Hertz at frequencies below 1 Hz;
- 1 × 10-3 nT
(rms) per square root of Hertz at frequencies equal to or greater than 1 Hz
but not greater than 10 Hz;
- 1 × 10-4 nT
(rms) per square root of Hertz at frequencies above 10 Hz;
- Fiber optic
magnetometers having a sensitivity of less (better) than 1 nT (rms) per
square root of Hertz;
6A006.a
4.2
9015.80
Underwater electric
field sensors
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6A006.b
4.3
9015.80
Magnetic gradiometers
- Magnetic gradiometers
using multiple magnetometers specified in 6A006.a.;
- Fiber optic intrinsic
magnetic gradiometers having a magnetic field gradient sensitivity less than
(better) than 0,3 nT/m (rms) per square root of Hertz;
- Intrinsic magnetic
gradiometers using technology other than fiber optics, having a magnetic
field gradient sensitivity less than (better) than 0,015 nT/m (rms) per
square root of Hertz.
6A006.c
4.4
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9015.90.00
9030.89
Compensation systems
Compensation systems for
magnetic sensors or underwater electric field sensors resulting in
performance equal to or greater than the parameters specified in 6A006.a.,
6A006.b., or 6A006.c.
6A006.d
4.5
9015.80
9015.90.00
9030.89
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Underwater
electromagnetic receivers incorporating magnetic field sensors specified in
6A006.a. or underwater electric field sensors specified in 6A006.b.
6A006.e
5
High-accuracy
gravimeters and gravity gradiometers
5.1
9015.80
9015.90.00
High-accuracy
gravimeters and gravity gradiometers
a) Gravimeters designed
or modified for land use and having a static accuracy of less (better) than
10 μGal;
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Paragraph 6A007.a.
does not control quartz element type ground gravimeters (Worden).
b. gravimeters designed
for mobile platforms and having all of the following characteristics:
- Static accuracy less
than (better) than 0,7 mGal; and
- In-service
(operational) accuracy of less (better) than 0,7 mGal with a steady state
rise time of less than 2 minutes regardless of the combination of
compensations and dynamic influences involved.
c. Gravity gradiometers.
6A007
5.2
9015.80
Others
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6A107.a
6
High-speed cameras
6.1
8525.81
Electronic scanning
cameras
Electronic scanning
cameras having a temporal resolution better than 50 ns;
6A003.a.3
6.2
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8525.89
9006.30.00
Scanning cameras
Scanning cameras having
a recording speed greater than 0,5 mm/μs;
6A203.a.1
6.3
8525.81
8525.89
9006.30.00
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Electronic scanning
cameras
Electronic scanning
cameras having a temporal resolution 50 ns or less
6A203.a.2
6.4
8525.81
Full-frame electronic
cameras
Full-frame electronic
cameras having a speed of more than 1 million frames per second
6A003.a.4
6.5
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8525.89
9006.30.00
Full-frame cameras
Full-frame cameras with
recording speeds greater than 225.000 frames per second
6A203.b.1
6.6
8525.81
8525.89
9006.30.00
...
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Full-frame cameras
Full-frame cameras
capable of framing exposure times of 50 ns or less
6A203.b.2
6.7
8525.81
Electronic cameras
Electronic cameras
having the following two characteristics:
a. Electronic shutter
speed (gating capability) less than 1 μs per full frame; and
b. Read out time
allowing a frame rate of over 125 full frames per second.
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6.8
8525.81
8525.89
9006.30.00
9006.59
Semiconductor or
electron tube cameras
Semiconductor or
electron tube cameras having a fast frame (shutter) trigger time of 50 ns or
less.
6A203.c.1
6.9
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8540.20.00
9006.91
Special parts of
semiconductor or electron tube cameras
Solid-state imaging
devices and image intensifier tubes having a fast image (shutter) trigger
time of 50 ns or less, specially designed for cameras specified in 6A203.c.1.
6A203.c.2
7
8525.82
9002.90
9006.30.00
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Radiation-resistant
television cameras or lenses thereof, specially designed for or nominally
capable of withstanding a total radiation dose of more than 50×103
Gy (silicon) [5×106 rad (silicon)] without impairing their
operation.
6A203.d
8
8541.51.00
8541.59.00
9029.20
9031.49
Speed measuring
interferometers intended to measure speeds greater than 1 km/s for periods of
less than 10 microseconds.
Speed measuring
interferometers intended to measure speeds greater than 1 km/s for periods of
less than 10 microseconds (μs).
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Paragraph 6A225
includes velocity interferometers such as:
- VISARs
(all-reflector velocity interferometers);
- ILDs (laser Doppler
interferometers);
- PDVs (photonic
Doppler celerimeters), also known as name Het-V (heterodyne celerimeters);
- Microwave
interferometers, including microwave-photonic interferometers.
6A225
9
8541.60.00
9026.20
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Pressure sensors capable
of measuring pressure above 10 GPa
Quartz pressure sensors
intended to operate with pressures above 10 GPa
6A226.b
10
Marine or land acoustic
equipment capable of detecting or navigating underwater objects or features
or navigating submersibles or underwater craft
Note:
(i) Paragraph
6A001.a.1. does not control equipment as follows:
a. Echo sounders
operating vertically below the device, not having a scanning function of more
than ± 20° and limited to measuring the depth of water, the distance of
submerged or buried objects or the detection of schools of fish (fish
finding);
b. Acoustic beacons,
as follows:
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- Underwater pulse
transmitters (pingers) specially designed to find or return to an underwater
position.
(ii) Technical
note:
For the purpose of
paragraph 6A001.a.1.a., enhancement includes the ability to compensate by
external means.
10.1
8543.70
9015.80
9030.39.00
Seabed acoustic
observation equipment
1. Surface observation
equipment designed for the preparation of topographic maps of the seabed and
having all of the following characteristics:
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b. Designed to measure
seabed topography at depths of more than 600 meters below the water surface;
c. Sounding resolution
less than 2;
d. Enhancement of depth
accuracy by compensation for all of the following characteristics:
- Movement of the
acoustic sensor;
- Back and forth
propagation in the water between sensor and seabed;
- Speed of sound at the
sensor.
Note:
For the purpose of
paragraph 6A001.a.1.a.1.c., sounding resolution is the corridor width (in
degrees) divided by the maximum number of surveys per corridor.
6A001.a.1.a.1
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8543.70
9015.80
9030.39.00
Seabed acoustic
observation equipment
2. Underwater
observation equipment designed for the preparation of topographic maps of the
seabed and having one of the following characteristics:
Note:
For the purpose of
paragraph 6A001.a.1.a.2., the nominal pressure of the acoustic sensor
determines the nominal depth.
a. Having all of the
following characteristics:
1. Designed or modified
to operate at depths greater than 300 m;
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Note:
For the purpose of
paragraph 6A001.a.1.a.2.a.2., the probing rate is the product of the maximum
speed (in m/s) at which the sensor can operate and the maximum number of
polls per lane assuming 100% coverage For systems that produce soundings in
two directions (3D sonars), the maximum 'sounding rate' in each direction
should be used.
b. Observation
equipment, not specified in 6A001.a.1.a.2.a., having all of the following
characteristics:
1. Designed or modified
to operate at depths exceeding 100 m;
2. Designed to take
measurements at an angle greater than 20° from the vertical angle;
3. Having one of the
following characteristics:
a. Operating frequency
less than 350 kHz;
b. Designed to measure
seabed topography at a distance of more than 200 m from the acoustic sensor;
4. Enhancement of depth
accuracy by compensation for all of the following characteristics:
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b. Back and forth
propagation in the water between sensor and seabed;
c. Speed of sound at the
sensor.
6A001.a.1.a.2
10.3
8543.70
9015.80
9030.39.00
Seabed acoustic
observation equipment
3. Side scan sonars
(SSS) or synthetic aperture sonars (SAS), designed for seabed imaging and
having all of the following characteristics, and their specially designed
transmission and reception acoustic arrays:
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b. Whose coverage area
rate exceeds 570 m2/s while operating at the maximum possible rate
at an along track resolution of less than 15 cm;
c. An across track
resolution of less than 15 cm.
Note:
For the purpose of
paragraph 6A001.a.1.a.3.:
1. The coverage area
rate (in m2/s) is twice the product of the sonar range (in m) and
the maximum speed (in m/s) at which the sensor can operate at that rate.
2. Along track
resolution (cm), for SSS only, to the product of the azimuth (horizontal)
beamwidth (in degrees), the sonar range and 0,873.
3. Across track
resolution (cm) corresponds to 75 divided by the spectrum width of the signal
(in kHz).
6A001.a.1.a.3
10.4
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9015.80
9030.39.00
Seabed acoustic
observation equipment
b. Transmission and
reception systems or matrices, designed for the detection or localization of
objects, and having any of the following characteristics:
1. Transmission
frequency less than 10 kHz;
2. Sound pressure
greater than 224 dB (reference 1 μΡa at 1 m) for equipment operating in the
band between 10 and 24 kHz inclusive;
3. Sound pressure
greater than 235 dB (reference 1 μΡa at 1 m) for equipment operating in the
band between 24 and 30 kHz;
4. Forming beams of less
than 1° on any axis and operating on frequencies below 100 kHz;
5. Designed to measure
object distances with an unambiguous display range greater than 5.120 m;
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a. With dynamic pressure
compensation;
b. Using a material
other than lead zirconate titanate in their transduction elements.
6A001.a.1.b
10.5
8543.70
9015.80
9030.39.00
Seabed acoustic
observation equipment
d. Acoustic systems and
equipment for determining the position of surface or underwater vehicles
having all of the following characteristics as well as components specially
designed for this purpose:
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2. Determined
positioning error of less than 10 m rms (root mean square value) measured at
a range of 1.000 m;
Note:
Paragraph
6A001.a.1.d. includes:
a. Equipment that
uses coherent signal processing between two or more beacons and the
hydrophone unit carried by the surface or underwater craft;
b. Equipment that is
capable of performing automatic correction of sound speed propagation errors
for the calculation of a point.
6A001.a.1.d
10.6
8543.70
9015.80
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Seabed acoustic
observation equipment
e. Individual active
sonars, specially designed or modified to automatically detect, locate and
classify swimmers and divers, having all of the following characteristics,
and their specially designed acoustic transmission and reception matrices:
1. Detection range over
530 m;
2. Determined
positioning error of less than 15 m rms (root mean square value) measured at
a range of 530 m;
3. Bandwidth for signal
transmission greater than 3 kHz;
Note:
In respect of paragraph
6A001.a.1.e. which addresses multiple detection ranges for various
environments, the widest detection range is used.
6A001.a.1.e
*Note:
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