NSG – Trigger List (Part 1)
INFCIRC/254/Rev.15/Part 1 (21 April 2026) · INFCIRC/254/Rev.15/Part 1
- 1. Nuclear reactors and especially designed or prepared equipment and components therefor
- 1.1. Complete nuclear reactors
- 1.2. Nuclear reactor vessels
- 1.3. Nuclear reactor fuel charging and discharging machines
- 1.4. Nuclear reactor control rods and equipment
- 1.5. Nuclear reactor pressure tubes
- 1.6. Nuclear fuel cladding
- 1.7. Primary coolant pumps or circulators
- 1.8. Nuclear reactor internals
- 1.9. Heat exchangers
- 1.10. Neutron detectors
- 1.11. External thermal shields
- 2. Non-nuclear materials for reactors
- 2.1. Deuterium and heavy water
- 2.2. Nuclear grade graphite
- 3. Plants for the reprocessing of irradiated fuel elements, and equipment especially designed or prepared therefor
- 3.1. Irradiated fuel element decladding equipment and chopping machines
- 3.2. Dissolvers
- 3.3. Solvent extractors and solvent extraction equipment
- 3.4. Chemical holding or storage vessels
- 3.5. Neutron measurement systems for process control
- 4. Plants for the fabrication of nuclear reactor fuel elements, and equipment especially designed or prepared therefor
- 4.1. Fully automatic pellet inspection stations especially designed or prepared for checking final dimensions and surface defects of the fuel pellets;
- 4.2. Automatic welding machines especially designed or prepared for welding end caps onto the fuel pins (or rods);
- 4.3. Automatic test and inspection stations especially designed or prepared for checking the integrity of completed fuel pins (or rods);
- 4.4. Systems especially designed or prepared to manufacture nuclear fuel cladding.
- 5. Plants for the separation of isotopes of natural uranium, depleted uranium or special fissionable material and equipment, other than analytical instruments…
- 5.1. Gas centrifuges and assemblies and components especially designed or prepared for use in gas centrifuges
- 5.2. Especially designed or prepared auxiliary systems, equipment and components for gas centrifuge enrichment plants
- 5.3. Especially designed or prepared assemblies and components for use in gaseous diffusion enrichment
- 5.4. Especially designed or prepared auxiliary systems, equipment and components for use in gaseous diffusion enrichment
- 5.5. Especially designed or prepared systems, equipment and components for use in aerodynamic enrichment plants
- 5.6. Especially designed or prepared systems, equipment and components for use in chemical exchange or ion exchange enrichment plants
- 5.7. Especially designed or prepared systems, equipment and components for use in laser-based enrichment plants
- 5.8. Especially designed or prepared systems, equipment and components for use in plasma separation enrichment plants
- 5.9. Especially designed or prepared systems, equipment and components for use in electromagnetic enrichment plants
- 6. Plants for the production or concentration of heavy water, deuterium and deuterium compounds and equipment especially designed or prepared therefor
- 6.1. Water-hydrogen sulphide exchange towers
- 6.2. Blowers and compressors
- 6.3. Ammonia-hydrogen exchange towers
- 6.4. Tower internals and stage sumps
- 6.5. NH₃ crackers
- 6.6. [No longer used – since 14 July 2023]
- 6.7. Catalytic burners
- 6.8. Complete heavy water finishing units, upgrade systems or columns therefor
- 6.9. NH₃ synthesis converters or synthesis units
- 6.10. Columns or towers packed with hydrogen isotope exchange catalyst
- 7. Plants for the conversion of uranium and plutonium for use in the fabrication of fuel elements and the separation of uranium isotopes as defined in sections 4…
- 7.1. Plants for the conversion of uranium and equipment especially designed or prepared therefor
- 7.2. Plants for the conversion of plutonium and equipment especially designed or prepared therefor