Paragraph 1
The record of the exposure to cosmic radiation of air crew assessed under article 75 of this Order and required to be kept under article 77(1) of this Order shall meet the requirements of this paragraph and in addition, as the case may be, the requirements of either sub-paragraph (1) or sub-paragraph (2) of paragraph 2.
A record kept under article 77(1) of this Order shall contain details of the assessment of the exposure to cosmic radiation for a period of at least twelve months, but not details of exposure before the coming into force of this Order.
A record kept under article 77(1) of this Order shall be available for production as a paper record for a period of two years from the date each assessment was made, except that where the assessment shows that an individual is liable to cosmic radiation exposure in excess of 6 milliSieverts per year the record shall be available as a paper record until whichever is the later of either—
the 75th anniversary of his birth, whether or not he has survived to that date, or
the 30th anniversary of the termination of his work which involved exposure to cosmic radiation.