In the event that any tuna longline fishing vessel leaves a port, its captain shall daily, completely, and accurately fill in the logbooks, format as shown in Appendix 7, where there is any catch or not.
The logbooks as referred to in the preceding paragraph may be filled in on the designated website or through the mobile device application.
Any captain that reports catch data through the electronic logbook (E-logbook) system shall be exempted from filling out the logbooks as stipulated in paragraph 1.

• Appendix 7 Logbook for tuna longline fishing vessels.pdf

The logbook(s) submitted or the data reported through the E-logbook shall not be altered or amended, unless there is apparent error with the content and the central competent authority has approved.

In case that any tuna longline fishing vessels enters a port, the logbook(s) for the current fishing trip shall be submitted to the regional fishermen’s association where the port of entry is, within five working days starting from the date of port entry. He/She who submits the catch data in accordance with paragraph 2, Article 13 is exempted from submitting the paper logbooks.
Any regional fishermen’s association that receives logbook(s) of tuna longline fishing vessel(s) registered in other port(s) shall transfer such logbook(s) to the regional fishermen’s association(s) where the port of registry is.
The regional fishermen’s association where the port of registry is shall compile the logbooks received before the 5th day and the 20th day of every month, and deliver to the municipal or county (city) competent authority.
After reviewing the data delivered by the regional fishermen’s association(s), the municipal or county (city) competent authority shall transfer to the central competent authority before the 5th day and the 20th day of every month.

In case that any tuna longline fishing vessel finds any sea turtle during fishing operation, such vessel shall, where practicable, bring aboard any comatose or inactive sea turtle as soon as possible, and foster its recovery and return it to the sea at once after recovery.
Any seabird, sea turtle, cetacean, or prohibited species as promulgated by the central competent authority or the authority for conservation of wild marine animals which is incidentally caught by any tuna longline fishing vessel shall be released when caught alive or discarded when dead, and the number(s) shall be duly recorded in the logbooks or the E-logbook.

For any tuna longline fishing vessel, its catch amount of bigeye tuna or albacore tuna during the first or second half of the current year shall not account for 50% or more of its total catch amount during the same period.

The total annual quota of bigeye tuna in the coastal and offshore area shall be limited to 400 metric tons.
The period for using the total annual quota as referred to in the preceding paragraph shall be from January 1 to December 31 of the current year.
In the event that the total catch amount of bigeye tuna has reached 90% of the total annual quota as referred to in paragraph 1, the central competent authority may order to stop fishing for bigeye tuna by a deadline.
Any bigeye tuna caught by a tuna longline fishing vessel after the deadline as referred to in the preceding paragraph shall be discarded and the number(s) discarded shall be recorded in the logbooks or the E-logbook.