; or (2) is an officer, employee, or agent of the Government of Russia and knowingly, on or after the date of the enactment of this Act, materially assisted, worked on behalf of, or acted as an agent or instrumentality of, the Government of Russia in committing murder, attempted murder, or assault outside of Russia against any expatriate, dissident, or foreign national. (b) Concurrent report The President shall submit to Congress a report, concurrent with the imposition of any sanction under subsection (a), that lists each person determined to have engaged in the conduct resulting in such sanction. (c) Sanctions described The sanctions described in this subsection are the sanctions described in section 224(b) of the Countering America’s Adversaries Through Sanctions Act ( 22 U.S.C. 9524(b) ). 305. Prohibition on transactions relating to new Russian sovereign debt (a) In general Not later than 90 days after the date of the imposition of a sanction pursuant to section 304(a)(2) , the President shall— (1) issue regulations prohibiting United States persons from engaging in transactions with, providing financing for, or in any other way dealing in Russian sovereign debt that is issued on or after the date that is 180 days after such date of imposition of sanctions