; and (ii) submit to Congress a report on the progress of the transfer or sale, and such report may submitted in classified form; and (B) certify to Congress that the anticipated delivery time of defense articles or services under such proposed transfer or sale meets United States foreign policy interests, or if the Secretary is unable to make such certification, the reasons therefor. (2) Use of drawdown authority and special authorities (A) In general The Secretary of State shall, in the case of a proposed transfer or sale of defense articles or services under this Act described in paragraph (1) that have not been delivered to the recipient by the date that is 3 years after the date on which notification of the transfer or sale was provided to Congress, use the authorities of section 506(a)(1) or 614(a)(1) of the Foreign Assistance Act of 1961 ( 22 U.S.C. 2318(a)(1) or 2364(a)(1)) to complete the transfer or sale. (B) Waiver The Secretary of State may waive the requirement of subparagraph (A) to use the authorities described in such subparagraph with respect to a transfer or sale of defense articles or services if the Secretary submits to Congress a report describing the reasons for the waiver. . 4. Special Defense Acquisition Fund Section 51 of the Arms Export Control Act ( 22 U.S.C. 2795 ), is amended— (1) in subsection (a)(1), by striking the second sentence