President Donald Trump announced a trade agreement with Japan on Tuesday, making it the largest U.S. trade partner to broker an accord as the White House threatens to impose tariffs on dozens of countries within days.

The deal imposes 15% tariffs on Japanese cars and other goods, one of the more favorable rates. While the start date and other basic elements are still unknown, Treasury Secretary Scott Bessent warned this week that the US would monitor implementation and bump the rate up to 25% if Trump isn’t satisfied.