; and (ii) does not include routine maintenance of such projects and construction. (3) Blocking the assets of entities in Russian defense and intelligence sectors (A) In general The Secretary of the Treasury shall, pursuant to 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 any entity described in subparagraph (B) 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. (B) Entities described An entity described in this subparagraph is— (i) an entity that the President determines pursuant to section 231 of the Countering Russian Influence in Europe and Eurasia Act of 2017 ( 22 U.S.C. 9525 ) is part of, or operates for or on behalf of, the defense or intelligence sectors of the Government of the Russian Federation; or (ii) an entity in which an entity described in clause (i) has an ownership interest of 50 percent or more. (4) Prohibition on transactions involving certain Russian debt The Secretary of the Treasury shall, pursuant to such regulations as the Secretary may prescribe, prohibit all transactions within the United States or by a United States person, in— (A) sovereign debt of the Government of the Russian Federation issued on or after the date of the enactment of this Act, including governmental bonds