# The Food (Control of Irradiation) Regulations 1990, Paragraph 11: Free standing conditions


The licence shall prohibit the licensee from subjecting any batch of food to treatment by ionising radiation from any source other than the following—
(a) gamma rays from the radionuclide 60 Co;
(b) gamma rays from the radionuclide 137 Cs;
(c) X rays generated from machine sources operated at or below an energy level of 5 MeV;
(d) electrons generated from machine sources operated at or below an energy level of 10 MeV.

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Source: https://www.legislation.gov.uk/uksi/1990/2490/schedule/1/paragraph/11 (the official version)
Page: https://openlegislation.uk/food-control-of-irradiation-regulations-1990/schedule-1/paragraph-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.