The International Chamber of Commerce has launched its revised Arbitration Rules, which took effect on 1 June 2026, updating the previous 2021 edition.
The new rules follow consultations with the ICC Commission on Arbitration and ADR and the ICC’s network of national committees across multiple jurisdictions.
The ICC registered its 30,000th case in December 2025 and received 881 new cases under the Arbitration Rules that year, reflecting continued institutional growth.
The 2026 Rules apply to all arbitrations commenced on or after 1 June 2026, regardless of when the underlying arbitration agreement was originally concluded.
Perhaps the most visible change is the removal of the mandatory Terms of Reference, which had been a fixture of ICC arbitration procedure for decades under Article 23 of the 2021 Rules.
The initial case management conference now takes its place as the first mandatory milestone, with tribunals required to hold it within 30 days of receiving the file from the ICC Secretariat.
After the initial case management conference, no party may bring new claims without the tribunal’s authorisation, meaning the Request for Arbitration and Answer now carry significantly greater procedural weight.
The 2026 Rules introduce an express early determination mechanism under Article 30, allowing any party to apply for early determination of claims deemed manifestly without merit or outside the tribunal’s jurisdiction.
The “manifestly without merit” standard is a demanding one, confining the mechanism to claims and defences whose weakness is apparent without extensive inquiry or prolonged procedure.
Comparable early determination powers already exist under the London Court of International Arbitration Rules 2020, the Singapore International Arbitration Centre Rules 2025, and the 2024 Hong Kong International Arbitration Centre Administered Arbitration Rules.
The expedited procedure threshold has been raised from US$3 million to US$4 million for arbitration agreements concluded on or after 1 June 2026, creating a tiered structure across different agreement dates.
Older agreements retain the threshold applicable at the time they were made, meaning a party holding contracts signed across the last decade may carry three different thresholds within a single portfolio.
A new Highly Expedited Arbitration procedure has also been introduced, available to all parties by agreement regardless of the amount in dispute, under Article 33 and Appendix VI.
Under this track, a sole arbitrator decides the dispute, the initial case management conference must be held within seven days of the arbitrator receiving the file, and the final award must follow within three months.
The parties may even agree to dispense with reasons for the award under Appendix VI, Article 7(2), a choice to be weighed carefully against the requirements of the likely place of enforcement.
Emergency arbitrator provisions have been expanded, with ex parte preliminary orders now permitted for the first time, allowing a party to seek relief directing another party not to frustrate the purpose of its application.
The 2026 Rules also impose an express confidentiality obligation on arbitrators, confirming that any doubt over whether to disclose must be resolved in favour of disclosure under Article 12(2).
Tribunal secretaries are addressed expressly for the first time, with secretaries now required to meet the same standards of independence, impartiality, and confidentiality as arbitrators themselves under Article 44.
The common thread running through the 2026 Rules is an increased tempo and a decisive shift of procedural weight towards the very opening of a case.
Parties should review their standard arbitration clauses carefully, paying particular attention to applicable thresholds, whether the highly expedited track is suitable, and how opening filings will be prepared.