The Extradition (Protection of Nuclear Material)Order 1997

Status:

This is the original version (as it was originally made). UK Statutory Instruments are not carried in their revised form on this site.

Material	Form	Category I	II	III^(c)
^(a) All plutonium except that with isotopic concentration exceeding 80% in plutonium−238.
^(b) Material not irradiated in a reactor or material irradiated in a reactor but with a radiation level equal to or less than 100 rads/hour at one metre unshielded.
^(c) Quantities not falling in Category III and natural uranium should be protected in accordance with prudent management practice.
^(d) Although this level of protection is recommended, it would be open to States, upon evaluation of the specific circumstances, to assign a different category of physical protection.
^(e) Other fuel which by virtue of its original fissile material content is classified as Category I and II before irradiation may be reduced one category level while the radiation level from the fuel exceeds 100 rads/hour at one metre unshielded.
1. Plutonium ^(a)	Unirradiated ^(b)	2 kg or more	Less than 2 kg but more than 500 g	500g or less but more than 15 g
2. Uranium −235	Unirradiated ^(b) -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 15g
-uranium enriched to 10% 235U but less than 20%		10 kg or more	Less than 10 kg but more than 1 kg
-uranium enriched above natural, but less than 10% 235U			10 kg or more
3. Uranium −233	Unirradiated ^(b)	2 kg or more	Less than 2 kg but more than 500 g	500g or less but more than 15 g
4. Irradiated fuel			Depleted or natural uranium, thorium or low-enriched fuel (less than 10% fissile content) ^(d) ^(e)