Arbitrator Selection in UAE: Appointment and Challenge

Who may sit as an arbitrator in the UAE, how tribunals are appointed by party agreement, by an institution or by a court, and what it takes to challenge or replace an arbitrator once the case is under way.

A working guide to arbitrator selection in the UAE: the qualification standards a candidate must meet, the three routes by which arbitrators are appointed, the grounds for challenging one, and how a replacement is made mid-case.

By Nour Attorneys / 22 August 2026

Reviewed by Mohamed Noureldin, Founder, Managing Partner & Senior Legal Consultant

Arbitrator Selection in the UAE: Qualifications, Appointment, Challenge and Replacement

The people who decide a dispute matter as much as the law they apply. In UAE arbitration, arbitrator selection fixes the tribunal’s competence on the subject matter, its neutrality between the parties and, in the end, how well the award stands up to review. Appointment is not a formality: it settles who reads the evidence, how the timetable runs and which procedural habits govern the case. This article sets out the qualifications arbitrators must meet in the UAE, the routes by which they are appointed, the grounds on which they can be challenged, and how a replacement is made.

For a company in a cross-border contract these rules are practical rather than academic. A clause that says nothing about the number of arbitrators, or about what happens in a deadlock, hands the decision to an institution or to a court. A candidate accepted without a conflict check invites a challenge months later, when the cost of starting again is at its highest. Getting the appointment right at the outset is the cheapest protection a party has.

Related Services: See our tax consultancy and arbitration services for support on the matters covered below.

Arbitrator Qualifications: the Standard the UAE Sets

UAE law and the main arbitral institutions set standards for who may sit, so that a tribunal is competent on the subject matter and independent of both sides. Three areas decide whether a candidate meets them.

Legal and Professional Expertise

Arbitrators in the UAE are expected to hold substantial legal knowledge, usually shown through formal legal qualifications or long experience in commercial or international arbitration. The UAE Arbitration Law No. 6 of 2018 and the Federal Arbitration Law No. 11 of 1992 emphasise the necessity for arbitrators to be impartial and independent, with expertise relevant to the subject matter of the dispute.

In practice, arbitrators sitting on UAE disputes often hold credentials in international arbitration, commercial law, or a specialist field such as construction or maritime law. That background lets them run a rigorous procedure and handle cases where the parties come from different legal systems and business cultures.

Impartiality and Independence

An arbitrator must remain impartial and independent for the whole of the arbitration. Disclosure duties are strict and continuing: a candidate must reveal any potential conflict of interest on appointment, and again if circumstances change while the case runs.

A failure on this point is the most common route to a successful challenge, and a challenge that succeeds late in proceedings costs both time and money. Parties should therefore run their own checks before proposing or accepting a candidate, rather than relying on the candidate’s own disclosure alone.

Language and Procedural Competence

Proceedings in the UAE are often bilingual, so an arbitrator needs a working command of the languages of the arbitration, in most cases Arabic, English or both. Procedural fairness depends on clear communication and on the tribunal’s grasp of the applicable legal principles, the procedural rules and the commercial setting of the dispute.

To see how these requirements sit within the wider process, see Nour Attorneys’ work on international arbitration and our broader arbitration practice.

Appointment Routes: Party Agreement, Institution, Court

Appointment in the UAE rests on three things working together: what the parties agreed, the rules of any institution they chose, and the statutory provisions that fill the gaps. The design aims to keep the process fair without letting it stall.

Party Agreement

Parties usually settle the number and the identity of the arbitrators themselves. The two common models are a sole arbitrator, or a panel of three in which each side appoints one arbitrator and those two appointees choose the presiding arbitrator. Splitting the choice this way limits the influence any single party has over the tribunal and produces a panel able to hold a contested case in order.

Where the arbitration clause spells out the appointment procedure, courts and arbitral institutions will follow what the parties wrote.

Institutional Appointment

When the parties cannot agree, or the clause is silent on how appointments are made, an arbitral institution or a court steps in. The Dubai International Arbitration Centre (DIAC) and the Abu Dhabi Global Market Arbitration Centre (ADGM AC) both operate settled protocols for making impartial appointments.

That role breaks deadlocks and stops a party from stalling the case by refusing to nominate. For more on how institutional arbitration works, see Nour Attorneys’ arbitration in Dubai page.

Court Intervention

Under the UAE Arbitration Law, the courts keep a residual power to appoint arbitrators when the other routes fail. It is a backstop against procedural gaps, and courts applying it try to respect what the parties agreed while keeping the case moving.

Relying on that backstop is still second best. A clause drafted so that court appointment is never needed leaves the parties with more control over the tribunal and a more predictable timetable.

Grounds for Challenge and Replacement Procedures

Even a careful appointment can run into trouble: a conflict surfaces, an arbitrator’s neutrality is questioned, or illness makes it impossible to continue. UAE law sets out both the grounds for challenging an arbitrator and the procedure for putting someone else in the seat.

Grounds for Challenge

An arbitrator may be challenged where circumstances give rise to justifiable doubts about their impartiality or independence. Undisclosed conflicts of interest, earlier involvement in a related matter, and conduct that compromises neutrality all fall within this ground.

A failure to meet the qualifications set out in the arbitration agreement or in the statutory provisions is a separate ground. Either way the application is contested, so the party bringing it needs specific facts and a clear legal basis rather than an impression.

Challenge Procedure

A challenge must be brought promptly and in line with the applicable procedural rules, typically within 15 days of the party becoming aware of the grounds. The arbitral tribunal considers it first. If the tribunal rejects the challenge, the party may apply to the competent court for a decision.

This two-stage route keeps routine questions inside the arbitration and leaves the harder ones to judicial review.

Replacement of Arbitrators

Where a challenge succeeds, or an arbitrator resigns or becomes unable to act, the UAE framework provides for a replacement. The replacement follows the same method as the original appointment, so the balance struck at the outset survives the change.

Moving quickly matters, because a vacancy left open is time an unwilling opponent can use. The drafting stage is the right moment to plan for it: a clause that sets a replacement timetable removes the argument later.

On wider dispute strategy, see Nour Attorneys’ dispute resolution and commercial litigation services.

Practical Guidance on Arbitrator Selection

Arbitrator selection works best when it is planned before a dispute arises. Four areas repay the effort: how the clause is drafted, how candidates are checked, how deadlines are managed, and how a challenge would be built if one became necessary.

Drafting Arbitration Clauses with Appointment Protocols

An arbitration clause should state the number of arbitrators, the appointment timetable and what happens if the parties deadlock. For example:

State whether the tribunal will be a sole arbitrator or a panel of three.
Define how each party appoints, and how the presiding arbitrator is chosen.
Adopt institutional rules (for example DIAC or ADGM AC) as the default appointment mechanism.
Treat court appointment as a last resort only.

Clear drafting removes the ambiguities an opponent can argue over, and it gets the tribunal in place sooner.

For help with the wording, see Nour Attorneys’ contract drafting service.

Due Diligence on Arbitrator Candidates

Before an appointment is confirmed, test each candidate against a short list:

Verify qualifications and experience relevant to the dispute.
Run conflict checks on past and present relationships.
Assess language ability and familiarity with the commercial setting.
Read earlier awards or published opinions for procedural and substantive tendencies.

Working through the list reduces the risk of a later challenge and makes the tribunal more stable once it is formed.

Managing Appointment Deadlines

Appointment deadlines in the arbitration agreement or in the institutional rules have to be met. Missing one can hand the appointment to a court, which takes the choice of arbitrator out of the party’s hands.

Diary control inside the business, with counsel involved early, keeps appointments on time and keeps the composition of the tribunal within the party’s influence.

Preparing a Challenge

If a challenge becomes necessary, the party bringing it should:

Gather concrete evidence of bias, conflict or inability to act.
File within the period the rules allow.
Frame the submission to match the procedural rules that apply.
Assume the tribunal may reject it and be ready to take the point to the competent court.

Prepared that way, a challenge removes an unsound appointment instead of merely delaying the case.

Four Scenarios and How They Resolve

Scenario 1: Deadlock over the Presiding Arbitrator

Each party appoints an arbitrator to a three-member tribunal, but the two sides cannot agree on the presiding arbitrator. The arbitration agreement refers to the DIAC rules and sets out no fallback of its own.

Resolution: DIAC appoints the presiding arbitrator under its protocol. The deadlock ends without a court application, and the proceedings carry on.

Scenario 2: An Undisclosed Conflict

An arbitrator appointed by one party does not disclose a business relationship with that party’s legal counsel. The other side finds out early in the proceedings and files a challenge.

Resolution: The tribunal rejects the challenge. The challenging party then applies to the UAE courts, which uphold it because of the failure to disclose. A replacement is appointed under the original mechanism.

Scenario 3: An Arbitrator Who Cannot Continue

Midway through the arbitration, an arbitrator resigns for health reasons. The arbitration agreement provides for the parties to appoint replacements.

Resolution: Each party appoints a replacement within the agreed time. The timetable holds, and the tribunal keeps the balance it had at the start.

Scenario 4: A Language Problem

An appointed arbitrator turns out not to be sufficiently proficient in English, the agreed language of the arbitration, which causes delay and misunderstanding.

Resolution: The other party raises a procedural objection and the tribunal decides to replace the arbitrator. Language ability is a qualification, not a detail.

Compliance Checklist for Arbitrator Selection in the UAE

Compliance Element	Description	Practical Notes
Qualification Verification	Confirm legal and professional credentials relevant to the dispute.	Set a vetting step that runs before any nomination is made.
Conflict of Interest Disclosure	Obtain full disclosure from each candidate before appointment.	Keep checking for conflicts for the whole of the arbitration.
Appointment Clause Clarity	Draft clauses that state the appointment process and the fallback.	Wording that removes ambiguity also removes deadlock risk.
Adherence to Timelines	Meet the deadlines for arbitrator appointments and challenges.	Diary the dates and give one person responsibility for them.
Language Proficiency Assessment	Check the arbitrator’s languages against the language of the arbitration.	Raise a communication concern early, not at the hearing.
Challenge Preparedness	Build the factual and legal basis before filing.	File promptly and within the procedural rules that apply.
Replacement Mechanism	Provide for the timely replacement of an arbitrator.	Name a replacement timetable so a vacancy cannot stall the case.

Working through the checklist before a dispute starts protects the arbitration from the tactics that most often disrupt it.

Cross-Border Cases: Further Points to Watch

Arbitration in the UAE often brings together parties from different jurisdictions, legal cultures and commercial practices, and one side is frequently the better resourced of the two. Four points follow from that:

Cultural awareness: an arbitrator should be able to read the commercial and cultural setting of a dispute without favouring either side, which stops misunderstandings from hardening into further disputes.
Procedural control: within the legal framework, a tribunal has to apply the procedural rules firmly against tactics such as repeated requests for extensions or excessive document production.
Confidentiality: commercial disputes are sensitive, and the tribunal must hold the parties to the confidentiality protections that shield their interests and their reputations.
Enforceability: appointment and challenge decisions should be taken with an eye on whether the award will be enforceable under UAE law and the New York Convention.

Nour Attorneys advises on each of these questions. See our commercial litigation, dispute resolution and corporate law services for the UAE market.

Conclusion

Arbitrator selection in the UAE decides how competent, how neutral and how efficient the tribunal will be. A party that understands the qualification standards, the appointment routes, the grounds for challenge and the replacement procedure keeps control of a process that otherwise drifts to an institution or a court.

The UAE arbitration framework supplies the tools for a fair and efficient hearing. Using them takes decisions made before the dispute rather than after it. Nour Attorneys works with clients on each appointment so that the tribunal, and the award that follows, hold up.

DISCLAIMER

This article is for informational purposes only and does not constitute legal advice. Please consult with a qualified attorney for specific guidance on your situation.

ADDITIONAL RESOURCES

GET EXPERT LEGAL GUIDANCE

To plan an arbitrator appointment, or to respond to one the other side has made, contact Nour Attorneys. Our team advises on international arbitration and dispute resolution for disputes seated in the UAE.

Author: Nour Attorneys Team