And transfers from China as well. The relevant section:

PROHIBITION ON IMPORTATION.—On and after the date that is 180 days after the date of the enactment of this Act, the importation into the United States of artificial intelligence or generative artificial intelligence technology or intellectual property developed or produced in the People’s Republic of China is prohibited

And the Trump administration is canny, they know Chinese LLM researchers have no way to read documents published in English. /s