Dispute Resolution | ICC Arbitration Rules 2026 – A new era for international arbitration?

The revisions aim to enhance efficiency, clarity and usability, while ensuring that ICC arbitration continues to meet the needs of users worldwide, following the previous update which entered into force in January 2021. Among the most consequential changes is the removal of the mandatory Terms of Reference (“ToR”), historically a distinctive feature of ICC proceedings requiring the parties and tribunal to sign a document defining the scope of the dispute at the outset of arbitration. Beyond the ToR, the revised Rules also introduce improvements to early dismissal mechanisms, updated provisions on the Emergency Arbitrator procedure, and enhanced tools for case management, all aimed at reducing delay and cost in international proceedings. The revised Rules will apply to all requests for arbitration filed on or after 1 June 2026.

The changes come at a time of continued strong demand for ICC Arbitration, with 881 cases filed under the Rules in 2025, total pending disputes reaching US$299 billion, and the ICC Rules ranked as the most preferred arbitration rules worldwide in a 2025 global survey. Nordic parties have historically been active users of ICC arbitration, and Scandinavian companies and states consistently feature among the users of the ICC’s caseload, reflecting the region’s deep integration in cross-border trade and investment.

At BAHR, we view these revisions as a welcome and forward-looking development. The removal of the mandatory ToR is the headline change and, in our view, the most practically significant. ToR have long been regarded as a procedurally cumbersome feature of ICC arbitration, and one that can introduce delay, cost, as well as potential for ancillary disputes, at the very outset of proceedings, a stage at which efficient momentum is particularly valuable. Much like recent reforms to other leading arbitration regimes, the changes should enhance efficiency, reduce satellite litigation, and reinforce confidence in ICC arbitration as a trusted framework for resolving international disputes. That said, parties and practitioners who have relied on ToR as a tool for crystallising the issues in dispute and defining the tribunal’s mandate will need to adapt their approach, and should consider carefully whether equivalent mechanisms ought to be built into their procedural timetables and procedural orders.

As the international arbitration landscape continues to evolve, these developments are equally relevant to Nordic parties engaged in cross-border trade and investment and serve as a timely reminder to review and update arbitration clauses in commercial agreements. For Nordic parties, we recommend in particular reviewing existing arbitration clauses to ensure they remain fit for purpose under the new Rules to capture changes and ensure advantage is taken of the new early dismissal and Emergency Arbitrator provisions, considering whether standard ICC clauses should be supplemented with bespoke case management provisions to signal whether a ToR will be used, and seeking guidance on adapting arbitration strategies to the revised framework.