There are authorized to be appropriated from time to time such sums as may be necessary for carrying out the purposes and provisions of the Convention and this chapter including-
(1) necessary travel expenses of the Commissioners and alternate Commissioners in accordance with the Federal Travel Regulation and sections 5701, 5702, 5704 through 5708, and 5731 of title 5; and
(2) the United States contribution to the Organization as provided in Article 16 of the Convention, not to exceed $50,000 for fiscal year 1983, and not to exceed, for each succeeding fiscal year, the amount assessed by the Organization for the United States for such year.
(