20. Decides to include in the provisional agenda of its fifty-seventh session, under the item entitled "Oceans and the law of the sea", the sub-item entitled "Agreement for the Implementation of the Provisions of the United Nations Convention on the Law of the Sea of 10 December 1982 relating to the Conservation and Management of Straddling Fish Stocks and Highly Migratory Fish Stocks".
20. 决定在题为"海洋和海洋法"的项目下将题为"执行1982年12月10日《联合国海洋法公约》有关养护和管理跨界鱼类种群和高度洄游鱼类种群的规定的协定"的分项列入大会第五十七届会议临时议程。