# The Nuclear Installations (Prescribed Sites) Regulations 1983, Schedule 1


Group
Radionuclides within the Group
Limit in Curies for radionuclides
in the form of sealed sources
in any other form
1
Radionuclides with A2 values not exceeding 0.01 curie
200
20
2
Radionuclides with A2 values exceeding 0.01 curie and not exceeding 1 curie
2000
200
3
Radionuclides with A2 values exceeding 1 curie and not exceeding 100 curies
50,000
5000
4
Radionuclides with A2 values exceeding 100 curies
500,000
50,000

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Source: https://www.legislation.gov.uk/uksi/1983/919/schedule/1 (the official version)
Page: https://openlegislation.uk/nuclear-installations-prescribed-sites-regulations-1983/schedule-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.