A Latin term that’s been little-known outside the world of customs brokers has suddenly become the stuff of headlines. Along with imposing new 10% tariffs on all Chinese imports as of Feb. 4, US President Donald Trump suspended his country’s special rules for “de minimis” merchandise from China and Hong Kong.

The trade loophole is meant to ease small-scale sales — but critics say it's been abused and gives Chinese firms an unfair advantage.

U.S. President Donald Trump on Friday signed an executive order delaying tariffs on de minimis, or low-cost, packages from China until the Commerce Department can confirm that procedures and systems are in place to process packages and collect tariff revenue.