The US Postal Service announced on Wednesday that it will accept parcels from China and Hong Kong, reversing a ban caused by President Donald Trump’s repeal of a trade provision that allowed retailers like as Temu, Shein, and Amazon AMZN.O to ship low-value products duty-free to the US. “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,” according to a statement from the agency. The Trump administration put an additional 10% duty on Chinese imports and abolished the “de minimis” exception, which allows American consumers to avoid paying duties on shipments from China worth less than $800.

USPS did not immediately comment on whether its brief suspension was related to Trump’s order ending de minimis shipments from China, which was announced on Saturday and went into effect at one minute past midnight on Tuesday. “There has really been absolutely zero time for anyone to prepare for this,” said Maureen Cori, co-founder of the New York-based consultancy Supply Chain Compliance. “What we really need is direction from the government on how to handle this without warning or notice.” De minimis parcels are currently aggregated so that customs may clear hundreds or thousands of shipments at once, but they will now need to be cleared individually, considerably increasing the strain on postal services, brokers, and customs agents, according to Cori.