1.The master of a fishing vessel using driftnets shall keep a logbook in which he shall record the following information on a day-to-day basis:
(a)the total length of the nets on board;
(b)the total length of the nets used in each fishing operation;
(c)the quantity, date and position of by-catches of cetaceans.
2.All fishing vessels using driftnets shall keep on board the authorisation referred to in Article 9(2).