; (B) the Convention on Consular Relations, done at Vienna April 24, 1963, and entered into force March 19, 1967; or (C) any other international treaty. 303. Rule of construction Nothing in this Act or an amendment made by this Act shall be construed to limit the authority of the President under the International Emergency Economic Powers Act ( 50 U.S.C. 1701 et seq.) or any other provision of law.