General rules for fishing logbooks
Article 51
1. The margin of tolerance referred to in Article 14(3) of the Control Regulation for the estimation of quantities in kilograms live weight of each species retained on board shall be expressed as a percentage of the fishing logbook figures. 2. For catches which are to be landed unsorted the margin of tolerance may be calculated on the basis of one or more representative samples for the total quantities kept on board. 3. For the purpose of the application of Article 14 of the Control Regulation species caught for live bait shall be considered as a species caught and kept on board. 4. The master of a EU fishing vessel crossing an effort zone where it is authorised to fish shall record and report the information referred to in Article 14(5) of the Control Regulation as applicable even if he does not carry out any fishing activities in that zone.