Washington DC - The US rescinded further export controls Tuesday on advanced computing semiconductors, answering calls by countries that said they were being shut out from crucial technology needed to develop artificial intelligence.

The so-called "AI diffusion rule," set to take effect on May 15, was part of a series of actions taken by then-President Joe Biden just before leaving office in January that sought to make it harder for Beijing to access advanced technology.

"The Trump Administration will pursue a bold, inclusive strategy to share American AI technology with trusted foreign countries around the world, while keeping the technology out of the hands of our adversaries," said Under Secretary of Commerce for Industry and Security Jeffrey Kessler.

Kessler criticized the previous administration's approach, adding, "We reject the Biden Administration's attempt to impose its own ill-conceived and counterproductive AI policies on the American people."

US politics US hits Iran with new sanctions as nuclear talks continue

Washington has expanded its efforts in recent years to curb exports of state-of-the-art chips to China, concerned that these can be used to advance Beijing's military systems and otherwise undermine American dominance in AI.

Biden's proposed rule aimed to avert any circumvention of chip supply to China from other countries.

The Commerce Department said the rule would have damaged American innovation and diplomatic relations with numerous countries that would have been "downgraded to second-tier status."

The rule divided the world's countries into three tiers, with each tier having its own level of restrictions.

Top-tier countries, like Japan and South Korea, would have continued to face no export restrictions, while Tier 2 regions, which included countries like Mexico and Portugal, would have seen a cap on the amount of chips they could receive.

Some US lawmakers feared the cap would have incentivized countries to go to China for AI chips, spurring the superpower's development of state-of-the-art technology.

Chipmakers, including Nvidia and AMD, lobbied against the tiered restrictions and saw their share prices rise last week when the Donald Trump administration indicated it would rethink the rule.

As an alternative, the Commerce Department reminded AI actors that using Huawei Ascend, the Chinese tech giant's most advanced chip, violated US export controls.

It also issued a warning about the potential consequences of allowing US AI chips to be used for training Chinese AI models.