Appellate Body Crisis

The Appellate Body is the standing seven-member tribunal created under the WTO's Dispute Settlement Understanding (DSU) in 1995 to hear appeals on points of law from panel reports. Under Article 17.1 of the DSU, three members are needed to hear any appeal. Since at least 2017, the United States has blocked the consensus needed to appoint or reappoint members, citing long-standing complaints about judicial overreach, the Appellate Body's tendency to issue advisory opinions, missed 90-day deadlines, and rulings on trade remedies (especially anti-dumping methodology and "zeroing").

On 10 December 2019, the terms of two of the three remaining members expired, leaving only one sitting member and depriving the body of a quorum. Since then, panel reports can still be issued, but a losing party can file an "appeal into the void," effectively suspending binding resolution of the dispute.

In response, the EU, China, Canada, Australia and others established the Multi-Party Interim Appeal Arbitration Arrangement (MPIA) in March 2020 under DSU Article 25, which replicates appellate review among participating members. As of the mid-2020s the MPIA has roughly two dozen participants but does not include the US, India, or Japan.

At MC12 (June 2022) WTO members committed to restoring a "fully and well-functioning dispute settlement system accessible to all Members by 2024," and informal facilitator-led talks have continued. As of MC13 (February 2024) no breakthrough on Appellate Body reform had been reached, though convergence emerged on some procedural issues.

The crisis is widely read as a stress test of the rules-based trading order: without binding appellate review, compliance pressure rests more heavily on bilateral negotiation, retaliation, and political leverage rather than adjudication.