The person familiar with the decision cautioned there is always uncertainty surrounding Trump’s final determination when it comes to trade and tariffs. But barring some unforeseen development, the president is expected to announce another six-month delay, the person said.

Lighthizer negotiated a trade agreement with Japan that opens that country's market to more U.S. agricultural exports and strengthens rules for digital trade. Because of that, he told reporters in September that he did not expect Trump to impose duties on Japan's auto and auto part exports.

However, talks with the EU have not produced a deal, mainly because of the EU's refusal to put agriculture on the table in the negotiations.

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A White House spokesperson declined to say what action Trump could take this week, and Lighthizer's office did not respond to questions on the issue.

An industry official said businesses have also been led to believe by White House officials that Trump will not impose duties this week, particularly after the Japan deal was reached.

Lighthizer previously negotiated new trade provisions with Mexico and Canada as part of the updated NAFTA agreement that could be approved by Congress in coming months. He also reached a deal with South Korea.