BIS Revises H200 Review Policy; Trump Imposes Section 232 Chip Tariff

Summary

In simultaneous actions on January 14–15, 2026, BIS moved the Nvidia H200 to case-by-case export license review, and President Trump issued a proclamation imposing a 25% Section 232 tariff on AI chips exported outside the US-aligned supply chain — the first application of national security tariff authority to semiconductor exports.

What Happened

Two separate but coordinated actions defined the opening of 2026's chip policy landscape. On January 14, President Trump signed a presidential proclamation under Section 232 of the Trade Expansion Act of 1962, invoking national security authority to impose a 25% tariff on exports of advanced AI chips to destinations outside a defined US-allied supply chain. The proclamation included domestic carve-outs designed to ensure that chips sold within the US and to designated ally markets were exempt, while chips flowing toward China, Russia, and other designated countries of concern would face the tariff. The measure combined revenue generation with an economic deterrence mechanism.

Simultaneously, on January 15, BIS published a Federal Register notice revising the license review policy for the Nvidia H200 — NVIDIA's then-current flagship AI accelerator — from a general presumption of approval to case-by-case review. This effectively placed the H200 in the same discretionary regime previously applied to the H20, extending executive flexibility over which sales to approve without a categorical ban.

Why It Matters

The dual action of January 2026 illustrated the evolution of US chip export control from a rules-based regime toward an executive-discretion model. The Section 232 tariff was constitutionally and legally novel: Section 232 had been used for steel and aluminum but never for finished semiconductors, and its application to AI chips would face immediate legal challenges under WTO commitments and domestic trade law. The H200 case-by-case policy, combined with the existing H20 revenue-share arrangement, meant that access to Nvidia's entire advanced GPU lineup was now subject to ad hoc White House-level decisions rather than published rules with clear compliance criteria. Industry and allied governments faced deep uncertainty about how to plan supply chains in an environment where policy could change by executive decree faster than contracts could be renegotiated.