the japan - south korea fisheries agreement was approved in 1965 and provides that 1 -rrb- coastal nations shall enforce the law up to 12 nautical miles from the shoreline of the nation concerned ; 2 -rrb- law enforcement in waters beyond the 12 nautical miles shall be handled by the nation with which the fishing vessel is registered -lrb- principle of ship 's flag -rrb- ; and 3 -rrb- mutual compliance shall be exercised relative to domestic regulations .