A single decree redrew Dubai’s arbitration map overnight. The DIAC Arbitration Rules 2022 then rebuilt the centre to international standard — but the default they carry catches the careless clause, and the DIFC-LCIA agreements they displaced remain a live liability.
One decree, one centre
For years Dubai offered a confusing choice of arbitral institutions. Decree No. 34 of 2021 (in force 20 September 2021) ended it in a stroke: it abolished the Emirates Maritime Arbitration Centre and the DIFC Arbitration Institute — dissolving the DIFC-LCIA — and folded their functions into a single, standalone Dubai International Arbitration Centre (DIAC). Overnight, Dubai went from three centres to one, and DIAC inherited the caseload, the assets and the ambition.
DIAC answered with the DIAC Arbitration Rules 2022, effective 21 March 2022, which retired the dated 2007 Rules and brought the centre into line with the LCIA, the ICC and SIAC. This is now Dubai’s flagship institution, and understanding its rules — and their defaults — is essential for anyone drafting or defending a Dubai-seated clause.
The default seat that catches the careless
The single most consequential feature of the 2022 Rules is hidden in plain sight: unless the parties agree otherwise, the default seat of a DIAC arbitration is the DIFC — the common-law financial free zone — not onshore Dubai. A clause that names DIAC but says nothing about the seat therefore lands in front of the English-language DIFC Courts, under DIFC arbitration law, with all the supervisory and enforcement consequences that follow. That may be exactly what sophisticated parties want; it is rarely what a party assumed when it wrote “arbitration in Dubai under DIAC Rules”. The seat is a deliberate choice — never a default to be discovered after the dispute begins.
What the 2022 Rules modernised
The upgrade is substantive, not cosmetic. The headline additions are the tools international users expect:
- Emergency arbitrator. Urgent interim relief before the tribunal is constituted, on an expedited timetable.
- Expedited proceedings. A streamlined, faster procedure for lower-value or urgent disputes.
- Consolidation and joinder. Related disputes and additional parties can be brought into a single reference, cutting cost and the risk of inconsistent awards.
- Express interim-measures powers for the tribunal, alongside provision for third-party funding, tribunal secretaries and remote hearings.
- A modernised costs and appointment framework, with clearer mechanics for constituting the tribunal and fixing fees.
A clause that names DIAC but forgets the seat has not chosen onshore Dubai — it has chosen the DIFC by default.
The DIFC-LCIA legacy problem
Decree 34 left a large population of pre-existing DIFC-LCIA clauses stranded. Arbitrations already on foot continue to be administered by the LCIA under the old DIFC-LCIA framework, but the enforceability of an untouched DIFC-LCIA agreement entered into before the decree — and invoked afterwards — has been litigated and remains contested. Any organisation with legacy contracts should audit them: a clause pointing at a dissolved institution is a dispute waiting to happen, and the safe course is to re-paper to a current DIAC (or other) clause where the counterparty will agree.
Drafting a DIAC clause that holds
Four decisions make the clause work: adopt the DIAC model clause; name the seat expressly (DIFC or onshore Dubai — do not leave it to the default); fix the number of arbitrators and the language; and align the governing law of the contract with the seat so they do not pull against each other. Get those right and DIAC delivers a fast, modern, enforceable process. Leave them to chance and the first months of the arbitration are spent arguing about where — and under whose supervision — it is even taking place. The wider architecture, and how DIAC sits alongside the onshore and ADGM options, is set out in the seats and frameworks.
Key instruments: Dubai Decree No. 34 of 2021; DIAC Arbitration Rules 2022; DIFC Arbitration Law (DIFC Law No. 1 of 2008, as amended). General information, not legal advice.