(4) (A) Notwithstanding paragraph (1) of this subsection, the President may, for a period of not more than 30 days of continuous session, delay the imposition of sanctions which would otherwise be required under paragraph (1)(A) or (1)(B) of this subsection if the President first transmits to the Speaker of the House of Representatives, and to the chairman of the Committee on Foreign Relations of the Senate, a certification that he has determined that an immediate imposition of sanctions on that country would be detrimental to the national security of the United States. Not more than one such certification may be transmitted for a country with respect to the same detonation, transfer, or receipt of a nuclear explosive device. (B) If the President transmits a certification to the Congress under subparagraph (A), a joint resolution which would permit the President to exercise the waiver authority of paragraph (5) of this subsection shall, if introduced in either House within thirty days of continuous session after the Congress receives this certification, be considered in the Senate in accordance with subparagraph (C) of this paragraph. (C) Any joint resolution under this paragraph shall be considered in the Senate in accordance with the provisions of section 601(b) of the International Security Assistance and Arms Export Control Act of 1976. (D) For purposes of this paragraph, the term “joint resolution” means a joint resolution the matter after the resolving clause of which is as follows: “That the Congress having received on __ a certification by the President under section 102(b)(4) of the Arms Export Control Act with respect to __, the Congress hereby authorizes the President to exercise the waiver authority contained in section 102(b)(5) of that Act.”, with the date of receipt of the certification inserted in the first blank and the name of the country inserted in the second blank.