The 2026 ICC Arbitration Rules: What clients need to know

The International Chamber of Commerce (ICC) International Court of Arbitration, one of the world’s leading arbitral institutions, has updated its widely used arbitration rules, with the revised rules applying to arbitrations commenced on or after 1 June 2026 unless the parties have agreed to submit to an earlier version of the rules. According to the ICC, the changes are intended to reflect the continuing evolution of arbitration practice by streamlining proceedings, enhancing case management, and ensuring the rules remain aligned with the needs of businesses, states, and state entities.

The update comes amid a broader cycle of reform across the arbitration landscape, with other major institutions, such as the London Court of International Arbitration (LCIA), also modernising their rules. With the new ICC rules now in force, it is worth examining the key changes and their practical implications for parties and their representatives, particularly given the importance of selecting the most appropriate arbitration rules and administering institution when drafting arbitration clauses.

Michael Ostrove, Vice President of the ICC International Court of Arbitration and DLA Piper Global Co-Chair of International Arbitration, together with fellow Global Co-Chairs Kate Brown de Vejar and Anna Mills, explore the key changes introduced by the 2026 ICC Rules. Watch the recording below.

Learn more about the firm’s international arbitration capabilities. Subscribe to our Arbitration Matters newsletter.

If you would like further information or have any questions, please get in touch with one of the key contacts below.