# Council Regulation (EC) No 51/2006 of 22 December 2005 fixing for 2006 the fishing opportunities and associated conditions for certain fish stocks and groups of fish stocks, applicable in Community waters and, for Community vessels, in waters where catch limitations are required, Division 17.3: The option to use more than one gear shall only be available if the following additional monitoring arrangements are met:

Extent: E+W+S+N.I.

(a) during a given trip the fishing vessel may carry on board or use only one of the fishing gears referred to in point 4, except as provided for in point 19.2;
(b) before any trip the master of a vessel or his representative shall give prior notice to the competent authorities of the type of fishing gear that is to be carried on board or used unless the type of fishing gear has not changed from the one notified for the previous trip.

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Source: https://www.legislation.gov.uk/eur/2006/51/annex/II/division/1/division/7/division/17/division/17.3 (the official version)
Page: https://openlegislation.uk/eu-regulation-2006-51/annex-II/division-1/division-7/division-17/division-17.3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.