Nuclear Security Regulations (SOR/2000-209)
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Regulations are current to 2024-10-14 and last amended on 2015-06-12. Previous Versions
SCHEDULE 1(Section 1)
Category I, II and III Nuclear Material
| Column 1 | Column 2 | Column 3 | Column 4 | Column 5 | |
|---|---|---|---|---|---|
| Item | Nuclear Substance | Form | Quantity (Category I)Footnote for Category I, II and III Nuclear Material1 | Quantity (Category II)Footnote for Category I, II and III Nuclear Material1 | Quantity (Category III)Footnote for Category I, II and III Nuclear Material1,Footnote for Category I, II and III Nuclear Material5 |
| 1 | PlutoniumFootnote for Category I, II and III Nuclear Material2 | UnirradiatedFootnote for Category I, II and III Nuclear Material3 | 2 kg or more | Less than 2 kg, but more than 500 g | 500 g or less, but more than 15 g |
| 2 | Uranium 235 | UnirradiatedFootnote for Category I, II and III Nuclear Material3 — uranium enriched to 20% 235U or more | 5 kg or more | Less than 5 kg, but more than 1 kg | 1 kg or less, but more than 15 g |
| 3 | Uranium 235 | UnirradiatedFootnote for Category I, II and III Nuclear Material3 — uranium enriched to 10% 235U or more, but less than 20% 235U | N/A | 10 kg or more | Less than 10 kg, but more than 1 kg |
| 4 | Uranium 235 | UnirradiatedFootnote for Category I, II and III Nuclear Material3 — uranium enriched above natural, but less than 10% 235U | N/A | N/A | 10 kg or more |
| 5 | Uranium 233 | UnirradiatedFootnote for Category I, II and III Nuclear Material3 | 2 kg or more | Less than 2 kg, but more than 500 g | 500 g or less, but more than 15 g |
| 6 | Fuel consisting of depleted or natural uranium, thorium or low-enriched fuel (less than 10% fissile content)Footnote for Category I, II and III Nuclear Material4 | Irradiated | N/A | More than 500 g of plutonium | 500 g or less, but more than 15 g of plutonium |
Return to footnote 1The quantities listed refer to the aggregate of each kind of nuclear substance located at a facility, excluding the following (which are considered separate quantities):
- (a)any quantity of the nuclear substance that is not within 1 000 m of another quantity of the nuclear substance; and
- (b)any quantity of the nuclear substance that is located in a locked building or a structure offering similar resistance to unauthorized entry.
Return to footnote 2All plutonium except that with isotopic concentration exceeding 80% in plutonium 238.
Return to footnote 3Material not irradiated in a reactor or material irradiated in a reactor but with a radiation level equal to or less than 1 Gy/h at 1 m unshielded.
Return to footnote 4Other fuel that by virtue of its original fissile content is classified as Category I or II before irradiation may be reduced one category level while the radiation level from the fuel exceeds 1 Gy/h at 1 m unshielded.
Return to footnote 5Quantities less than the quantities set out in column 5 for Category III nuclear material and any quantities of natural uranium, depleted uranium and thorium should be protected at least in accordance with prudent security practice.
- SOR/2006-191, ss. 33, 34(F), 35, 36, 40(F)
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