# The Environmental Permitting (England and Wales) Regulations 2016, Paragraph 25: Table 4


The Table 4 referred to in Sections 2 and 3 of this Part—
Table 4
Radioactive material and accumulated radioactive waste: values of maximum quantities
Substance or article
Maximum quantity of radionuclides for each substance or article
Maximum quantity of radionuclides:
(a) on any premises in items which satisfy the limit in column 2, or
(b) in mobile radioactive apparatus held by a person
A sealed source of a type not described in any other row of this Table
4 x 106 Bq
2 x 108 Bq
A Class A gaseous tritium light device
2 x 1010 Bq
5 x 1012 Bq
A Class B gaseous tritium light device
1 x 1012 Bq
3 x 1013 Bq
A Class C gaseous tritium light device
1 x 1012 Bq
No limit
Any sealed source which is solely radioactive material or radioactive waste because it contains tritium
2 x 1010 Bq
5 x 1012 Bq
A tritium foil source
2 x 1010 Bq
5 x 1012 Bq
A smoke detector affixed to premises
4 x 106 Bq
No limit
An electrodeposited source
6 x 108 Bq Ni-63 or 2 x 108 Bq Fe-55
6 x 1011 Bq
A luminised article
8 x 107 Bq Pm-147 or 4 x 109 Bq H-3
4 x 1010 Bq Pm-147 or 2 x 1011 Bq H-3
A Ba-137m eluting source
4 x 104 Bq Cs-137+
4 x 105 Bq Cs-137+
A substance or article which is or contains magnesium alloy or thoriated tungsten in which the thorium concentration does not exceed 4% by mass
No limit
No limit
A uranium or thorium compound
Up to a total of 5kg of uranium and thorium
Up to a total of 5kg of uranium and thorium
A substance or article (other than a sealed source) which is intended for use for, used for, or arises from medical or veterinary diagnosis or treatment or clinical or veterinary trials
1 x 109 Bq Tc-99m
1 x 109 Bq Tc-99m
and
and
in respect of the total for all other radionuclides—
2 x 108 Bq of all other radionuclides, (no more than 1 x 108 Bq of which is contained in radioactive material)
(i) 1 x 108 Bq if the substance or article is radioactive material, or
(ii) 2 x 108 Bq if the substance or article is radioactive waste

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Source: https://www.legislation.gov.uk/ukdsi/2016/9780111150184/schedule/23/paragraph/25 (the official version)
Page: https://openlegislation.uk/draft-environmental-permitting-england-and-wales-regulations-2016/schedule-23/paragraph-25
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.