Classification of workers, and conditions and areas of work

Pages11-14
4. Classification of workers, and conditions and areas of work
4.1. Categorisation of workers
4.1.1. For the purpose of this code there are two categories of workers:
(a) workers engaged in radiation work; and
(b) workers not engaged in radiation work, but who might be exposed to radiations
because of their work.
4.1.2. Workers engaged in radiation work are workers to whom the dose limits
given in paragraph 5.4.3 apply.
4.1.3. Workers not engaged in radiation work should be treated, as far as
restricting radiation exposure is concerned, as if they were members of the public.
4.1.4. No person under the age of 16 should be considered to be a worker
engaged in radiation work for the purpose of this code.
4.1.5. No worker, student, apprentice or trainee under the age of 18 should be
allowed to engage in radiation work in radiation Working Condition A (see paragraph
4.3.1); such persons may only, therefore, work in Working Condition B.
4.2. Conditions of exposure
4.2.1. For the purpose of this code there are two conditions of exposure:
(a) conditions in which the occurrence of exposure can be foreseen and limited by
appropriate control measures; these include exposures under normal conditions of
operation and planned special exposures; and
(b) conditions in which the source of exposure is not subject to control; these include
accidental exposures and emergency exposures, i.e. exposures during abnormal
conditions where it is urgent to prevent injury or to save life, to rescue injured or
trapped individuals and to prevent a substantial increase in the scale of an
accident, including the saving of property.
4.3. Working conditions
4.3.1. For the purpose of this code there are two classes of working conditions
for workers engaged in radiation work:
(a) Working Condition A – where the annual exposures might exceed three-tenths of
the dose limits (given in paragraph 5.4.3); and
(b) Working Condition B – where it is most unlikely that the annual exposures will
exceed three-tenths of the dose limits (given in paragraph 5.4.3).
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