Regulations for Fishing Vessels Conducting Southern Bluefin Tuna Fishery Article 20

For any fishing vessel of the southcentral Indian Ocean group or the domestic sale group that has obtained a southern bluefin tuna permit, in case that its catch amount is less than 50%, its distant water fisheries operator shall report the amount for voluntary quota deduction to the Tuna Association by 15 August of the current year, and the Tuna Association shall forward it to the competent authority.
中文原文 南方黑鮪漁撈作業管理辦法第20條
取得南方黑鮪作業許可之中南印度洋組或漁獲返國銷售組漁船,其漁獲量未達百分之五十者,經營者應將自願調減之配額數量,於當年八月十五日以前向鮪魚公會申報,轉送主管機關

English translation for reference only; the Chinese text prevails. Not legal advice.