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The Ionising Radiations Regulations (Northern Ireland) 2017

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PART 2

8.  For the purposes of regulation 12(2), the limit on effective dose for employees or trainees of 18 years or above is 100 mSv in any period of five consecutive calendar years subject to a maximum effective dose of 50 mSv in any single calendar year.

9.  Without prejudice to paragraph 8—

(a)the limit on equivalent dose for the lens of the eye is—

(i)20 mSv in a calendar year; or

(ii)in accordance with conditions approved by the Executive from time to time, 100 mSv in any period of five consecutive calendar years subject to a maximum equivalent dose of 50 mSv in any single calendar year;

(b)the limit on equivalent dose for the skin is 500 mSv in a calendar year as applied to the dose averaged over any area of 1 cm2 regardless of the area exposed;

(c)the limit on equivalent dose for the extremities is 500 mSv in a calendar year.

10.  The employer shall ensure that any employee in respect of whom regulation 12(2) applies is not exposed to ionising radiation to an extent that any dose limit specified in paragraphs 8 or 9 is exceeded.

11.  An employer shall not put into effect a system of dose limitation pursuant to regulation 12(2) unless—

(a)the radiation protection adviser and any employees who are affected have been consulted;

(b)any employees affected and the approved dosimetry service have been informed in writing of the decision and of the reasons for that decision; and

(c)notice has been given to the Executive at least 28 days (or such shorter period as the Executive may allow) before the decision is put into effect giving the reasons for the decision

12.  Where there is reasonable cause to believe that any employee has been exposed to an effective dose greater than 20 mSv in any calendar year, the employer shall, as soon as is practicable—

(a)undertake an investigation into the circumstances of the exposure for the purpose of determining whether the dose limit referred to in paragraph 8 is likely to be complied with; and

(b)notify the Executive of that suspected exposure.

13.  An employer shall review the decision to put into effect a system of dose limitation pursuant to regulation 12(2) at appropriate intervals and in any event not less than once every five years.

14.  Where as a result of a review undertaken pursuant to paragraph 13 an employer proposes to revert to a system of annual dose limitation pursuant to regulation 12(1), the provisions of paragraph 11 apply as if the reference in that paragraph to regulation 12(2) was a reference to regulation 12(1).

15.  Where an employer puts into effect a system of dose limitation in pursuance of regulation 12(2), the employer shall record the reasons for that decision and shall ensure that the record is preserved until any person subject to the system of dose limitation under regulation 12(2) has or would have attained the age of 75 years but in any event for at least 30 years from the making of the record.

16.  In any case where—

(a)the dose limits specified in paragraph 8 are being applied by an employer in respect of an employee; and

(b)the Executive is not satisfied that it is impracticable for that employee to be subject to the dose limit specified in paragraph 1 of Part 1 of this Schedule,

the Executive may require the employer to apply the dose limit specified in paragraph 1 of Part 1 with effect from such time as the Executive may consider appropriate having regard to the interests of the employee concerned.

17.  In any case where, as a result of a review undertaken pursuant to paragraph 13, an employer proposes to revert to an annual dose limitation in accordance with regulation 12(1), the Executive may require the employer to defer the implementation of that decision to such time as the Executive may consider appropriate having regard to the interests of the employee concerned.

18.  Any person who is aggrieved by the decision of the Executive taken pursuant to paragraphs 16 or 17 may appeal to the Department.

19.  Chapter I of the Schedule to the Deregulation (Model Appeal Provisions) Order (Northern Ireland) 1997 shall apply to any appeal under paragraph 18(1).

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