The Biden administration and Congress need to "get the details right in case they must follow through on the threat of sanctions," Jake Colvin, president of The National Foreign Trade Council told Reuters.

"Those details should include consideration of safe harbors or wind-down periods to enable companies to fulfill existing contracts and obligations, as well as carve-outs for lifesaving medicines and other humanitarian considerations consistent with longstanding U.S. policy."

(Reporting by Andrea Shalal and David Lawder, Editing by Heather Timmons)