Measures tightening customs waivers on low-value shipments of foreign goods going directly to U.S. consumers may undercut allegedly unfair cheaper pricing by Chinese e-commerce companies Shein and Temu.

In his announcement proposing to crack down on "unsafe, unfairly traded products," President Joe Biden accused China-founded e-commerce platforms selling cheap goods of abusing the "de minimis exemption" that makes shipments valued under $800 duty-free.