; and (bb) information used to support such determination with respect to such countries. (vii) (I) The Postmaster General shall, in consultation with the Commissioner, refuse any shipments received after December 31, 2020, for which the information described in paragraphs (1) and (2) is not transmitted as required under this subparagraph, except as provided in subclause (II). (II) If remedial action is warranted in lieu of refusal of shipments pursuant to subclause (I), the Postmaster General and the Commissioner shall take remedial action with respect to the shipments, including destruction, seizure, controlled delivery or other law enforcement initiatives, or correction of the failure to provide the information described in paragraphs (1) and (2) with respect to the shipments. (viii) Nothing in this subparagraph shall be construed to limit the authority of the Secretary to obtain information relating to international mail shipments from private carriers or other appropriate parties. (ix) In this subparagraph, the term appropriate congressional committees means— (I) the Committee on Finance and the Committee on Homeland Security and Governmental Affairs of the Senate; and (II) the Committee on Ways and Means, the Committee on Oversight and Government Reform, and the Committee on Homeland Security of the House of Representatives. . (2) Joint strategic plan on mandatory advance information Not later than 60 days after the date of the enactment of this Act, the Secretary of Homeland Security and the Postmaster General shall develop and submit to the appropriate congressional committees a joint strategic plan detailing specific performance measures for achieving— (A) the transmission of information as required by section 343(a)(3)(K) of the Trade Act of 2002, as amended by paragraph (1)