U.S. tightens export controls

A House committee moved to widen U.S. tech export controls this week, aiming at AI systems and chipmaking tools, not just finished chips. (chinaselectcommittee.house.gov) On April 22, the House Foreign Affairs Committee advanced a package of bills that backers said would restrict semiconductor manufacturing equipment, create new whistleblower incentives for export-control violations, and authorize sanctions tied to theft of American AI models. (chinaselectcommittee.house.gov) The package includes the MATCH Act on chipmaking gear, the Stop Stealing our Chips Act on Bureau of Industry and Security tipsters, and the Deterring American AI Model Theft Act of 2026. The committee had already advanced the AI OVERWATCH Act in January, a separate bill focused on licensing and oversight for high-performance AI chip exports. (foreignaffairs.house.gov) (congress.gov) (govinfo.gov) (chinaselectcommittee.house.gov) Export controls are the rules that decide which U.S. goods, software and know-how can be shipped abroad without a license. In semiconductors, they increasingly cover the machines and technical inputs used to make advanced chips, because those tools can be as strategically important as the chips themselves. (congress.gov 1) (congress.gov 2) That shift has been building for years. A September 2025 Congressional Research Service report said Washington has tightened semiconductor controls on China since 2018 to limit access to advanced chips, production capability, and related artificial intelligence applications. (congress.gov) The Biden administration had already pushed the frontier beyond hardware. A Commerce Department rule published January 15, 2025 added controls on certain advanced AI model weights — the numerical parameters that store how a model works — alongside updated controls on advanced computing chips. (federalregister.gov) Congress is now pressing beyond the existing rulebook as the Trump administration pursues its own chip policy. A March 23, 2026 Congressional Research Service legal analysis said the administration had created a “Chips Arrangement” that would allow sales of Nvidia’s H200 to China after a U.S. security review and with a 25% tariff mechanism tied to imports from Taiwan fabrication sites. (congress.gov) Supporters of tighter controls argue China can still buy or divert critical equipment through gaps in allied enforcement. A House China committee release on April 21 urged the State Department to work with the Netherlands to close what Chairman John Moolenaar called a loophole in sales of advanced semiconductor manufacturing equipment to China. (chinaselectcommittee.house.gov) Some industry and policy voices have warned that broader controls can also cut U.S. sales and encourage Chinese firms to build substitutes faster. The Congressional Research Service said stakeholders remain split, with some favoring looser rules to preserve U.S. competitiveness and others arguing that easing restrictions would give up strategic advantages. (congress.gov) The committee votes do not change export rules on their own; the bills still need to move through Congress and, in some cases, align with Senate versions. But the direction is clear: Washington is trying to control more of the AI and chip supply chain, from factory tools to the model “weights” inside advanced software. (congress.gov) (federalregister.gov)