Supplementary reports
10.  The occupier of the place on land or the person in charge of the apparatus, as the case may be, who is required to make a report in accordance with regulation 9 shall make such a supplementary report or reports as may be appropriate in the circumstances —
(a)supplementing the information contained in the initial report as necessary;
(b)providing information concerning further developments; and
(c)complying as fully as possible with any request for additional information made by the Port Master.