The Commerce Department is beginning a Section 232 investigation into possible tariffs on commercial aircraft and jet engines, including parts, it said in a notice released May 9. The agency will consider “the effects on national security of imports of commercial aircraft and jet engines, and parts for commercial aircraft and jet engines,” as well as “whether additional measures, including tariffs or quotas, are necessary to protect national security,” among other things. Comments are due June 3.

President Donald Trump said on social media early May 9, "80% Tariff on China seems right! Up to Scott B." He was referring to Treasury Secretary Scott Bessent, who will meet with China's vice premier in Switzerland on Saturday and Sunday to talk trade.

President Donald Trump said at a press conference May 8 that Rolls-Royce engines and other British aerospace exports will enter duty-free, but the 10% tariffs on British goods will remain in place on all other goods under a tariff deal with the U.K.

Exemptions from reciprocal tariffs for goods in transit as of April 5 or April 9 apply only to ocean vessels, said CBP in an April 30 update to its FAQ on the tariffs.

Correction: A credit that automakers will be able to put toward tariffs on auto parts will be set at 3.75% of the MSRP of vehicles they have built and sold in the U.S., a senior Commerce official said on a call with reporters.

Automakers who build cars in the U.S. will be able to avoid paying tariffs on some imported auto parts, to the degree that they have sold U.S.-built cars in the U.S., a senior Commerce official said on a call with reporters.

President Donald Trump issued an executive order April 29 exempting all goods "subject to" International Emergency Economic Powers Act tariffs on Canada and Mexico from Section 232 tariffs on steel and aluminum.

Automakers who build cars in America and import parts to do so will get a partial credit against the costs of 25% Section 232 tariffs on non-USMCA qualifying parts -- but the Commerce Department will examine companies' projections of both how many cars and light trucks they expect to build in the U.S. between April 3, 2025 and April 30, 2026, and the aggregate value of the MSRP of those vehicles.

CBP released a notice on the end of de minimis eligibility for products from China and Hong Kong beginning May 2, as outlined in an executive order issued earlier this month. The notice describes the new system of tariffs on carriers for postal shipments that will take effect on that date, as well as changes to the Harmonized Tariff Schedule to implement the changes.

The Commerce Department quietly launched an investigation into the national security threat of the import of trucks of gross weight of more than 10,000 pounds and components and systems for medium- and heavy-duty trucks, including engines and engine parts, transmissions and powertrain parts, as well as electrical components.