DSU Article 25

Article 25 of the Understanding on Rules and Procedures Governing the Settlement of Disputes (the DSU), one of the covered agreements annexed to the 1994 Marrakesh Agreement Establishing the WTO, provides that "expeditious arbitration within the WTO as an alternative means of dispute settlement can facilitate the solution of certain disputes that concern issues that are clearly defined by both parties." It is a standalone, consent-based track distinct from the ordinary panel–Appellate Body route under Articles 6 to 17. Recourse to arbitration under Article 25 requires mutual agreement of the parties, who themselves agree the procedures to be followed (Article 25.2), must notify all Members before the proceedings begin, and undertake to abide by the award (Article 25.3). Crucially, Articles 21 and 22 of the DSU — governing surveillance of implementation and the authorisation of suspension of concessions (retaliation) — apply mutatis mutandis to Article 25 awards, meaning an arbitral outcome carries the same enforcement machinery as an adopted panel or Appellate Body report.

For most of the WTO's history Article 25 was nearly dormant; its sole pre-2019 use was the 2001 arbitration on the US – Section 110(5) Copyright Act dispute, where the arbitrators determined the level of nullification or impairment suffered by the European Communities. Its significance was transformed by the paralysis of the Appellate Body, which lost its quorum on 11 December 2019 after the United States blocked the appointment and reappointment of its members, leaving appeals into a non-functional "void" (appeals "into the void"). To preserve binding two-tier adjudication, a group of Members negotiated the Multi-Party Interim Appeal Arbitration Arrangement (MPIA), notified to the WTO on 30 April 2020 under Article 25. The MPIA uses Article 25 arbitration to replicate appellate review, with awards rendered by arbitrators drawn from a standing pool, pending restoration of a functioning Appellate Body.

As of 2026 the MPIA had over 25 participating Members, including the European Union, China, Canada, Australia, Brazil, Japan, Switzerland, Singapore, Mexico, New Zealand and others, though the United States and India remain outside it. The first MPIA appeal arbitration award was issued in the Colombia – Frozen Fries dispute (2022), and subsequent awards have confirmed the workability of the mechanism. Article 25 thus functions both as a bilateral expedited-arbitration tool and as the legal scaffolding for collective interim appellate review, demonstrating the DSU's internal flexibility during institutional crisis.

For competitive examinations, Article 25 surfaces in the international-law and global-institutions papers as the technical anchor of any discussion of the WTO dispute-settlement crisis. UPSC and FSOT candidates should be able to explain how it differs from the standard panel process, why the Appellate Body became dysfunctional in December 2019, and how the MPIA leverages Article 25 to maintain binding appellate-style review. Typical question angles ask candidates to evaluate whether such workarounds undermine or sustain the rules-based multilateral trading system, to identify which major economies have declined to join the MPIA, and to connect the episode to broader debates on reform of WTO dispute settlement mandated at MC12 (2022) to be restored by 2024.