The U.S. Congress is advancing the bipartisan AI Overwatch Act, a legislative proposal introduced in December 2025 by Representative Brian Mast (R-FL). The bill aims to impose congressional oversight on the export of advanced artificial intelligence chips, specifically targeting sales to countries like China. The proposed oversight mechanism is modeled on the congressional review process for missile sales, signaling a significant shift in technology trade policy.
The legislation directly challenges Trump-era policies that favored more open export routes for AI technology. It has garnered support from key figures including Rep. Warren Davidson, while facing strong opposition from Nvidia and other industry stakeholders aligned with the previous administration's stance. During a hearing on January 14, 2026, Rep. Mast defended the proposal, stating, "Should Congress have oversight when selling missiles to other countries? Yes, the same should be said for chips."
The bill's provisions include a potential 25% tariff on non-U.S. supply chain imports and a specific, proposed two-year ban on exports of Nvidia's advanced Blackwell chips to China. This move is driven by national security concerns, particularly the fear that advanced AI chips could bolster China's military capabilities. Former Deputy National Security Advisor Matt Pottinger emphasized the need for durable guardrails, arguing Congress must "step in, reverse the policy, and put durable guardrails in place so the mistake can’t be repeated."
Financially, the legislation could significantly restrict market growth for companies like Nvidia in China, forcing adaptations in corporate strategy and impacting international AI competitiveness. The policy shift echoes historical precedents, such as the Trump administration's earlier stringent regulations on tech exports under classifications ECCNs 3A090 and 4A090. Experts suggest the bill may bolster domestic technological capabilities and prioritize U.S. technological sovereignty, but it also risks escalating trade tensions and straining U.S.-China relations further.
