of Homeland Security may not admit, parole into the United States, or otherwise provide nonimmigrant status under such subparagraphs, to any alien who is, or has previously been, employed, sponsored, or funded by any entity identified on the most recently published list under subsection (a). (c) Inquiry Before issuing a visa described in subsection (b) to a national of China, the Secretary of State, the Secretary of Homeland Security, a consular officer, or a U.S. Customs and Border Protection officer shall ask the alien seeking such visa if the alien is, or has previously been, employed, funded, or otherwise sponsored by the Chinese People’s Liberation Army or any of the affiliated institutions identified on the most recently published list under subsection (a). (d) Exception To Comply With United Nations Headquarters Agreement Subsection (b) shall not apply to an individual if admitting the individual to the United States is necessary to permit the United States to comply with the Agreement between the United Nations and the United States of America regarding the Headquarters of the United Nations, signed June 26, 1947, and entered into force November 21, 1947, and other applicable international obligations. (e) National Security Waiver The President, or a designee of the President, may waive subsection (b) if the President or such designee certifies in writing to the appropriate congressional committees that such waiver is in the national security interest of the United States. 17. Prohibition on investment of TSP I fund in China (a) In general Section 8438(b)(4) of title 5, United States Code, is amended by adding at the end the following: (C) The index selected by the Board under subparagraph (A) may not include investments in any stock of an entity based in the People’s Republic of China. . (b) Divestiture of assets Not later than 60 days after the date of the enactment of this Act, the Federal Retirement Thrift Investment Board (as established under section 8472(a) of title 5, United States Code), in