Regulation 3 Master of parent craft

ensure that no operation or activity which is likely to be a danger to any person engaged in the submersible operation is carried on from or on the parent craft;

before commencing any activity which in his view might affect the safety of the submersible operation, advise the operations controller;

ensure that the area of the parent craft on or from which any part of the submersible operation is carried out is maintained in a condition suitable and safe for that purpose;

ensure that the operations controller is provided before the submersible operation begins and at adequately frequent intervals during the course of such operation with meteorological and oceanological forecasts for the relevant area;

warn the operations controller of the approach of any vessel which is or might become a hazard to the parent craft or the submersible craft;

take such steps as circumstances may require to warn vessels in the vicinity that a submersible operation is in progress from or near the parent craft;

in the event of a casualty ensure notification by the operations controller to the owner as required under regulation 13.