A summary of the russian import bill seems to cover enriched...

A summary of the russian import bill seems to cover enriched uranium which is swaped out. Clearly the Us will need to ensure that the Russians dont get around the intent of the ban.
"This bill limits the importation of uranium from Russia.Specifically, it bans unirradiated low-enriched uranium (i.e., uranium that has not been in a reactor) that is produced in Russia or by a Russian entity from being imported into the United States. The bill also prohibits the importation of unirradiated low-enriched uranium that has been swapped for the banned uranium or otherwise obtained in a manner designed to circumvent the ban's restrictions.However, the Department of Energy (DOE) may waive this ban if DOE determines that (1) no alternative viable source of low-enriched uranium is available to sustain the continued operation of a nuclear reactor or a U.S. nuclear energy company, or (2) importation of the uranium is in the national interest. Any waiver issued must terminate by January 1, 2028. The ban terminates on December 31, 2040. "

https://www.congress.gov/bill/118th-congress/house-bill/1042