; and (B) not later than 60 days after each such list is submitted to the appropriate committees of Congress under that subsection, submit to the appropriate committees of Congress a report on the review conducted under subparagraph (A) that includes a list of persons not included in that list that qualify for inclusion in that list, as determined by the Comptroller General. (2) Consultations In preparing the report required by paragraph (1)(B), the Comptroller General shall consult with nongovernmental organizations. 234. Imposition of sanctions with respect to certain persons involved in ballistic missile activities (a) Certification Not later than 120 days after the date of the enactment of the Iran Ballistic Missile Sanctions Act , and not less frequently than once every 180 days thereafter, the President shall submit to the appropriate committees of Congress a certification that each person listed in an annex of United Nations Security Council Resolution 1737 (2006), 1747 (2007), or 1929 (2010) is not directly or indirectly facilitating, supporting, or involved with the development of or transfer to Iran of ballistic missiles or technology, parts, components, or technology information relating to ballistic missiles. (b) Blocking of property (1) In general If the President is unable to make a certification under subsection (a) with respect to a person and the person is not currently subject to sanctions with respect to Iran under any other provision of law, the President shall, not later than 15 days after that certification would have been required under that subsection— (A) 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 that person 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