Member States may permit transfer of days present within the area for the same management period and within the area between any fishing vessels flying their flags provided that points 4.2, 4.4, 5, 6 and 10 apply mutatis mutandis. Where Member States decide to authorise such a transfer, as a preliminary they shall notify the Commission before the transfer takes place, the details of the transfer, including the number of days transferred, the fishing effort and, where applicable, the fishing quotas relating thereto, as agreed between them.