The United States Postal Service has appeared to U-turn on a move to suspend parcels from China and Hong Kong.
A statement on Tuesday had said acceptance of inbound parcels would be temporarily suspended as letters were left unaffected.
However, an updated notice on Wednesday said "all international inbound mail and packages from China and Hong Kong" would keep being accepted.
"The USPS and Customs and Border Protection are working closely together to implement an efficient collection mechanism for the new China tariffs to ensure the least disruption to package delivery," it said.
Though no reason was given for the initial move, it came as trade tensions between the US and China mounted after Donald Trump confirmed 10% tariffs at the weekend.
China subsequently unveiled retaliatory tariffs of 10% to 15% on US goods, due from February 10, with coal and liquefied natural gas facing the steepest levies.
Tuesday’s move also coincided with new rules closing a loophole allowing small packages under US$800 (£641) to be sent to the US tax and fee-free.
The loophole had been slated for allowing Chinese retailers like Temu and Shein to undercut US rivals.