; rule of construction (a) In general The following activities shall be exempt from sanctions under sections 4, 5, 6, and 7: (1) Any activity subject to the reporting requirements under title V of the National Security Act of 1947 ( 50 U.S.C. 3091 et seq.), or to any authorized intelligence activities of the United States. (2) The admission of an alien to the United States if such admission is necessary to comply with United States obligations under the Agreement between the United Nations and the United States of America regarding the Headquarters of the United Nations, signed at Lake Success June 26, 1947, and entered into force November 21, 1947, or under the Convention on Consular Relations, done at Vienna April 24, 1963, and entered into force March 19, 1967, or other applicable international obligations of the United States. (3) The conduct or facilitation of a transaction for the sale of agricultural commodities, food, medicine, or medical devices to Iran or for the provision of humanitarian assistance to the people of Iran, including engaging in a financial transaction relating to humanitarian assistance or for humanitarian purposes or transporting goods or services that are necessary to carry out operations relating to humanitarian assistance or humanitarian purposes. (b) Exception relating to importation of goods A requirement or the authority to block and prohibit all transactions in all property and interests in property under section 4, 5, 6, 7, or 8 shall not include the authority to impose sanctions with respect to the importation of goods. (c) Implementation Except as provided in subsection (b), the President may exercise all authorities provided under sections 203 and 205 of the International Emergency Economic Powers Act ( 50 U.S.C. 1702 and 1704) to carry out this Act. (d) Rule of construction Nothing in this Act (other than subsection (b)) shall be construed to limit the authority of the President under the International Emergency Economic Powers Act ( 50 U.S.C. 1701 et seq.). (e) Definitions