151.—(1) A relevant undertaking must keep a record for the period and in the manner prescribed of the exposure to cosmic radiation of air crew assessed under article 148 and the names of the air crew concerned.
(2) A relevant undertaking must, within a reasonable period after being requested to do so by an authorised person, cause to be produced to that person the record required to be kept under paragraph (1).
(3) A relevant undertaking must, within a reasonable period after being requested to do so by a person for whom a record is required to be kept under paragraph (1), supply a copy of that record to that person.
(4) In this article ‘air crew’ and ‘undertaking’ have the same meaning as in article 148(5).