Regulations for Tuna Longline Fishing Vessels Proceeding to the Atlantic Ocean for Fishing Operation Article 5-1

Any tuna longline fishing vessel shall not stay at sea for more than ten consecutive months. The duration may be extended for two months with the consent of the competent authority, provided that there is a cause of force majeure or insufficient berths in port that leads to failing to enter port within the required timeframe. Such extension shall be permitted for one time only.
中文原文 鮪延繩釣漁船赴大西洋作業管理辦法第5-1條
鮪延繩釣漁船連續停留海上期間不得逾十個月。
但因港口泊位不足或其他不可抗力因素致無法於期限內進港,經主管機關同意者,得延長二個月,並以一次為限。

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