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The Ionising Radiations Regulations (Northern Ireland) 2017

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1.  Work with ionising radiation is not required to be notified in accordance with regulation 5 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 1 of Schedule 7 (for artificial radionuclides and naturally occurring radionuclides which are processed for their radioactive, fissile or fertile properties) or column 2 of Part 2 of Schedule 7 (for naturally occurring radionuclides which are not processed for their radioactive, fissile or fertile properties);

(b)where the quantity of radioactive substance involved does not exceed the quantity specified in column 3 of Part 1 of Schedule 7 (for artificial radionuclides and naturally occurring radionuclides which are processed for their radioactive, fissile or fertile properties) or column 3 of Part 2 of Schedule 7 (for naturally occurring radionuclides which are not processed for their radioactive, fissile or fertile properties);

(c)where the concentration of activity per unit mass or quantity of a radioactive substance does not exceed values which may be approved by the Executive for specific types of work and where such work satisfies the exemption criteria set out in paragraphs 2 and 3 below;

(d)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(d) 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 that 1 µSvh-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;

(e)the operation of any electrical apparatus to which these Regulations apply other than apparatus referred to in sub-paragraph (f) 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(e) 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 1 µSvh-1 at a distance of 0.1m from any accessible surface;

(f)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 1 µSvh-1 at a distance of 0.1m from any accessible surface; or

(g)where the work involves contaminated material resulting from authorised releases which the chief inspector has declared not to be subject to further control.

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