; (B) transporting goods or services that are necessary to carry out operations relating to humanitarian assistance or humanitarian purposes pursuant to such a waiver; or (C) having incidental contact, in the course of providing humanitarian assistance or aid for humanitarian purposes pursuant to such a waiver, with individuals who are under the control of a foreign person subject to sanctions under this Act or any amendment made by this Act. (c) National security waiver (1) In general The President may, on a case-by-case basis and for periods not to exceed 120 days, waive the application of sanctions under this Act or amendments made by this Act with respect to a foreign person if the President certifies to the appropriate congressional committees that such waiver is vital to the national security interests of the United States. (2) Consultation (A) Before waiver issued Not later than 5 days before the issuance of a waiver under paragraph (1) is to take effect, the President shall notify and brief the appropriate congressional committees on the status of the foreign person's involvement in activities described in this Act or amendments made by this Act. (B) After waiver issued Not later than 90 days after the issuance of a waiver under paragraph (1), and every 120 days thereafter if the waiver remains in effect, the President shall brief the appropriate congressional committees on the status of the foreign person’s involvement in activities described in this Act or amendments made by this Act. 503. Appropriate congressional committees defined In this title, the term appropriate congressional committees means— (1) the Select Committee on Intelligence, the Committee on Banking, Housing, and Urban Affairs, and the Committee on Foreign Relations of the Senate