The tariffs are targeting a rule that allows Chinese retailers like Shein and Temu to avoid paying duties on packages worth $800 or less.

The US proposed a new regulation on Monday to strengthen oversight of low-value imports under the de minimis rule, which exempts goods valued at US$800 or less from duties and stringent screening.

The U.S. government has recently proposed new bipartisan legislation aimed at restricting de minimis provisions for textiles and apparel imports. De minimis provisions play a crucial role in ...