The Ionising Radiations Regulations 2017 No. 1075

SCHEDULE 3 Dose limits

PART 1 Classes of persons to whom dose limits apply

Employees and trainees of 18 years of age or above

2.  Without prejudice to paragraph 1—

(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.