; or (iv) otherwise knowingly aided such program. (B) A description of the character and significance of the cooperation of each person identified under subparagraph (A) with the Government of Iran with respect to such program. (C) An assessment of the cooperation of the Government of the Democratic People’s Republic of Korea with the Government of Iran with respect to such program. (3) Classified annex Each report required by paragraph (1) shall be submitted in unclassified form, but may contain a classified annex. (b) Blocking of property (1) In general Not later than 15 days after submitting a report required by subsection (a)(1), the President shall, in accordance with the International Emergency Economic Powers Act ( 50 U.S.C. 1701 et seq. ), block and prohibit all transactions in all property and interests in property of any person specified in such report if such property and interests in property are in the United States, come within the United States, or are or come within the possession or control of a United States person. (2) Inapplicability of national emergency requirement The requirements under section 202 of the International Emergency Economic Powers Act ( 50 U.S.C. 1701 ) shall not apply for purposes of this subsection. (c) Exclusion from United States (1) In general Except as provided in paragraph (2), the Secretary of State shall deny a visa to, and the Secretary of Homeland Security shall exclude from the United States, any alien subject to blocking of property and interests in property under subsection (b). (2) Compliance with United Nations headquarters agreement Paragraph (1) shall not apply to the head of state of Iran, or necessary staff of that head of state, if admission to the United States is necessary to permit the United States to comply with the Agreement regarding the Headquarters of the United Nations, signed at Lake Success June 26, 1947, and entered into force November 21, 1947, between the United Nations and the United States. (d) Facilitation of certain transactions The