# Ionising Radiations Regulations (Northern Ireland) 2000, Paragraph 1

Extent: N.I.

Work with ionising radiation shall not be required to be notified in accordance with regulation 6 when the only such work being carried out is in one or more of the following categories—
(a) where the concentration of activity per unit mass of a radioactive substance does not exceed the concentration specified in column 2 of Part I of Schedule 8;
(b) where the quantity of radioactive substance involved does not exceed the quantity specified in column 3 of Part I of Schedule 8;
(c) where apparatus contains radioactive substances in a quantity exceeding the values specified in sub-paragraphs (a) and (b) provided that—
(i) the apparatus is of a type approved—
(aa) by the Executive; or
(bb) by the Great Britain Executive in accordance with paragraph 1(c) of Schedule 1 to the Great Britain Regulations;
(ii) the apparatus is constructed in the form of a sealed source;
(iii) the apparatus does not under normal operating conditions cause a dose rate of more than 1???mSvh−1 at a distance of 0.1m from any accessible surface; and
(iv) conditions for the disposal of the apparatus have been specified by the chief inspector;
(d) the operation of any electrical apparatus to which these Regulations apply other than apparatus referred to in sub-paragraph (e) provided that—
(i) the apparatus is of a type approved—
(aa) by the Executive; or
(bb) by the Great Britain Executive in accordance with paragraph 1(d) of Schedule 1 to the Great Britain Regulations; and
(ii) the apparatus does not under normal operating conditions cause a dose rate of more than 1mSvh−1 at a distance of 0.1m from any accessible surface;
(e) the operation of—
(i) any cathode ray tube intended for the display of visual images; or
(ii) any other electrical apparatus operating at a potential difference not exceeding 30kV,
provided that the operation of the tube or apparatus does not under normal operating conditions cause a dose rate of more than 1mSvh–1 at a distance of 0.1m from any accessible surface;
(f) where the work involves material contaminated with radioactive substances resulting from authorised releases which the chief inspector has declared not to be subject to further control.

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Source: https://www.legislation.gov.uk/nisr/2000/375/schedule/1/paragraph/1 (the official version)
Page: https://openlegislation.uk/ionising-radiations-regulations-northern-ireland-2000/schedule-1/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.