DIAC Mediation Rules UAE 2026: Model Clause Language, Multi‑tier Steps & Mediator Appointment

The DIAC mediation rules now form the procedural backbone of administered mediation in Dubai, yet the model clause published on the DIAC website remains deliberately brief, leaving contract drafters to fill critical gaps around multi‑tier triggers, mediator appointment mechanics and enforcement routing. Since 1 October 2023 the rules have applied to every mediation application registered with the Dubai International Arbitration Centre, while the broader UAE framework for mediation in the UAE has continued to evolve: Federal Decree‑Law No. 40 of 2023 introduced a dedicated statutory regime for mediated settlements, the DIFC Courts updated their enforcement procedures in 2025, and arbitrateAD published its own stand‑alone Mediation Rules on 28 January 2026.

This article provides the practitioner toolkit that official sources leave out, three ready‑to‑copy DIAC‑focused model clauses, a step‑by‑step multi‑tier timeline, a mediator‑appointment comparison table, and a clause‑level enforcement guide covering DIAC, DIFC and arbitrateAD.

What the DIAC Mediation Rules Cover (and Why Drafters Care)

The DIAC Mediation Rules govern the administration of mediations seated in Dubai under the auspices of the Dubai International Arbitration Centre. They apply automatically to any mediation application filed with DIAC on or after 1 October 2023, regardless of when the underlying contract was signed. For in‑house counsel and external contract drafters, three features of the rules carry particular weight: the confidentiality framework, the administrative role DIAC plays in appointing mediators and managing timelines, and the interaction between the rules’ settlement provisions and UAE enforcement law.

Key Features: Confidentiality, Administration and the DIAC Model Clause

Confidentiality under the DIAC Mediation Rules extends to the entire mediation process, including written and oral communications exchanged during sessions. Neither party may use such communications as evidence in any subsequent arbitration or court proceedings, except where disclosure is required by law or necessary to enforce a settlement agreement. DIAC itself acts as an administrative hub, receiving the mediation request, assisting with mediator selection (including from its own panel) and setting procedural calendars. The DIAC model mediation clause, published on the institution’s website, provides a starting point but does not, by itself, address multi‑tier sequencing, time limits for negotiation stages, or fallback appointment mechanisms when the parties cannot agree on a mediator.

Model Clause Language: Ready‑to‑Use DIAC‑Focused Clauses

A well‑drafted mediation clause answers three questions that the standard DIAC model clause leaves open: when is a party obliged to mediate, how is the mediator chosen, and what happens if settlement fails? The three templates below, a multi‑tier pre‑condition clause, a stand‑alone mediation clause and a DIAC‑appointed‑mediator clause, address these gaps directly. Each can be adapted for contracts governed by UAE onshore law, DIFC law or the laws of other jurisdictions where the parties have agreed to mediate in Dubai.

Clause A, Multi‑Tier Pre‑Condition to Arbitration

This is the recommended default for international commercial contracts with a UAE nexus. It creates a binding obligation to attempt mediation before either party may commence arbitration.

“Any dispute, controversy or claim arising out of or in connection with this Agreement, including any question regarding its existence, validity or termination (a Dispute), shall be resolved in accordance with the following steps:

(a) The parties shall first attempt to resolve the Dispute by good‑faith negotiation. Either party may initiate this step by serving written notice on the other party describing the Dispute in reasonable detail (a Dispute Notice).

(b) If the Dispute is not resolved within [14/30] days of service of the Dispute Notice, either party may refer the Dispute to mediation administered by the Dubai International Arbitration Centre (DIAC) in accordance with the DIAC Mediation Rules in force at the date of filing. The mediation shall be conducted in [English/Arabic] and shall take place in Dubai.

(c) If the Dispute is not settled within [30/60] days of the commencement of mediation (or such longer period as the parties may agree in writing), either party may refer the Dispute to final and binding arbitration under the DIAC Arbitration Rules. The arbitral tribunal shall consist of [one/three] arbitrator(s) appointed in accordance with those rules. The seat of arbitration shall be [Dubai / DIFC]. The language of the arbitration shall be [English].

Nothing in this clause shall prevent either party from seeking interim or conservatory measures from any court of competent jurisdiction at any time.”

Drafting note: The final sentence preserves the right to seek urgent relief, a critical safeguard. Without it, a respondent could argue that commencing court proceedings for an interim injunction amounts to a waiver of the multi‑tier obligation.

Clause B, Non‑Binding, Stand‑Alone Mediation

This clause suits parties who want a fast, voluntary path to settlement without committing to a mandatory step before litigation or arbitration.

“The parties agree that any Dispute may, by written agreement of both parties at the time the Dispute arises, be submitted to mediation administered by DIAC under the DIAC Mediation Rules then in effect. The mediation shall be non‑binding. Either party may withdraw from the mediation at any time by written notice to DIAC and the other party. No party shall be precluded from commencing arbitration or court proceedings at any time, whether before, during or after mediation.”

Drafting note: Because this clause is permissive rather than mandatory, it cannot function as a pre‑condition to arbitration. It is useful in joint‑venture agreements or long‑term supply contracts where the commercial relationship makes voluntary mediation likely but where neither party wishes to be locked into a mandatory step.

Clause C, DIAC Admin‑Appointed Mediator with Timings

Where parties anticipate difficulty agreeing on a mediator, this clause delegates appointment authority to DIAC from the outset.

“Any Dispute shall be submitted to mediation administered by DIAC under the DIAC Mediation Rules in force at the date of filing. The mediator shall be appointed by DIAC from its panel of mediators within [7] days of the filing of the mediation request, taking into account the nature of the Dispute, the languages required and any preference expressed by the parties. The mediation shall be completed within [45] days of the mediator’s appointment, unless the parties and the mediator agree to extend that period. If the Dispute is not settled, either party may commence [arbitration/court proceedings] without further procedural pre‑condition.”

Drafting note: Specifying the seven‑day appointment window prevents procedural stalling. The 45‑day cap keeps costs proportionate.

Adapting Clauses for DIFC and arbitrateAD

If the contract is governed by DIFC law, or if the parties prefer Abu Dhabi as the mediation seat, the model clauses above require targeted adjustments. For DIFC‑seated mediations, replace references to “DIAC Mediation Rules” with the applicable DIFC mediation rules or the mediation framework administered by the DIFC Courts. For Abu Dhabi, reference the arbitrateAD Mediation Rules (published 28 January 2026) and name arbitrateAD as the administering institution. The enforcement route also changes: DIFC settlements may be enforced via the DIFC Courts’ writ procedure, while arbitrateAD settlements follow the Abu Dhabi onshore courts’ ratification process under Federal Decree‑Law No. 40 of 2023.

Multi‑Tier Trigger Steps and Practical Timeline

A multi‑tier dispute resolution clause only works if each tier has a defined trigger, a clear deadline and an unambiguous transition to the next step. Industry observers expect that UAE courts will increasingly scrutinise whether mandatory tiers were genuinely followed before permitting arbitration, making precise drafting essential. The four‑step model below reflects the structure most commonly used in contracts subject to the DIAC mediation rules.

Practical notes on timing: The days specified above are illustrative. Shorter negotiation windows (14 days) suit fast‑moving commercial disputes such as trade‑finance or shipping claims, while longer windows (30 days) are standard for construction and infrastructure contracts. The mediation window (Step 3) should include a mechanism for extension by mutual written agreement, without this, a mediation that is close to settlement may be terminated prematurely by a party racing to commence arbitration.

Trigger language matters: Avoid vague formulations such as “the parties shall endeavour to mediate.” UAE courts and tribunals may interpret such language as aspirational rather than mandatory, undermining the pre‑condition character of the tier. Use prescriptive language: “shall refer,” “shall file,” “shall commence.”

To start the process of mediation under the DIAC mediation rules, a party files a written mediation request with DIAC, accompanied by a copy of the mediation agreement (or the relevant clause), a brief description of the dispute and payment of the applicable registration fee. DIAC then notifies the other party and initiates the mediator appointment procedure.

Mediator Appointment: Options, Sample Wording and Pitfalls

How the mediator is selected often determines whether the process succeeds or stalls. The DIAC Mediation Rules provide for party agreement as the primary route, with DIAC administrative appointment as the default fallback. Two other mechanisms are available outside DIAC: joint appointment by the parties without institutional involvement, and court‑directed appointment (relevant where the mediation is seated in the DIFC).

Appointment Routes Compared

Qualification requirements: Consider specifying that the mediator must be fluent in the language of the contract, hold recognised mediation accreditation and have demonstrable sector experience (e.g., construction, energy, maritime). Without such specifications, the administering institution may appoint a generalist whose lack of sector knowledge frustrates the parties.

Anti‑deadlock backstop: Always include a fallback mechanism. A clause that relies solely on party agreement with no institutional backstop risks becoming a dead letter. The recommended approach is to allow a short window for joint nomination, followed by automatic institutional appointment if the window expires.

Enforcement, Settlement Ratification and Exit Routes

A mediated settlement agreement is, at common law and under most civil‑law traditions, a private contract. To convert it into an enforceable court order or arbitral award, critical where a counterparty later refuses to perform, parties operating under the DIAC mediation rules and the broader UAE framework need to navigate a layered enforcement landscape shaped by Federal Decree‑Law No. 40 of 2023, the DIFC Courts’ 2025 procedural updates and, for Abu Dhabi‑seated mediations, the arbitrateAD Mediation Rules.

Key Legislative and Institutional Timeline

Enforcement Routes Compared: DIAC, DIFC Courts and arbitrateAD

Federal Decree‑Law No. 40 of 2023, the anchor statute: This decree‑law provides that a mediated settlement agreement, once ratified by a competent UAE court, carries the force of an enforceable judicial instrument. The ratification process requires the settlement to have been reached through a mediation that complied with applicable procedural rules and for the agreement itself not to conflict with public order. In practical terms, this means that any settlement reached under the DIAC mediation rules or the arbitrateAD Mediation Rules can be converted into an enforceable court order, provided the parties include an express ratification clause and file promptly.

Consent‑award alternative: Where the contract’s arbitration model clause contemplates a subsequent arbitration, parties may instead record the mediated settlement as a consent award under the applicable arbitration rules. This route may offer faster cross‑border enforcement under the New York Convention, but requires an arbitration to have been commenced, adding administrative cost.

DIFC Courts and enforcement of onshore settlements: The relationship between DIFC Courts and the Dubai onshore courts continues to evolve. A settlement reached under the DIAC mediation rules (an onshore institution) would typically be enforced through the onshore Dubai courts. However, where the mediation clause specifies the DIFC as the seat of mediation, or where the DIFC Courts’ jurisdiction is otherwise established, the DIFC enforcement route, including the updated 2025 writ procedures, becomes available. The likely practical effect will be that sophisticated parties increasingly opt for DIFC enforcement language in their clauses where speed and procedural certainty are priorities.

Practical Drafting Checklist and Red Flags

Before finalising any UAE mediation clause, contract teams should verify the following thirteen points:

• Express institution choice. Name DIAC, DIFC or arbitrateAD explicitly, do not assume a default.
• Applicable rules. Reference the DIAC Mediation Rules (or equivalent) “in force at the date of filing.”
• Mandatory vs voluntary language. Use “shall” for mandatory tiers; “may” only if the tier is optional.
• Trigger mechanism. Define the Dispute Notice format, delivery method and recipient.
• Negotiation deadline. Set a fixed number of days (14–30) for good‑faith negotiation.
• Mediation commencement deadline. Specify when the mediation request must be filed after negotiation expires.
• Mediator appointment method. Include a fallback (DIAC appointment) if joint nomination fails.
• Mediator qualifications. Language, sector expertise and accreditation requirements.
• Mediation completion deadline. Cap the mediation period (30–60 days) with an extension mechanism.
• Confidentiality carve‑outs. Address regulatory, competition‑law and anti‑money‑laundering disclosure obligations.
• Interim relief preservation. Expressly preserve the right to seek urgent court relief at any time.
• Enforcement and ratification clause. State that any settlement may be submitted for court ratification under Federal Decree‑Law No. 40 of 2023.
• Language and seat. Specify the language of mediation and the seat (Dubai, DIFC or Abu Dhabi), these affect which court has enforcement jurisdiction.

Sources

1. DIAC, Mediation Rules 2023 (page)
2. DIAC, DIAC Mediation Rules PDF (official)
3. arbitrateAD, Mediation Rules (PDF, 28 Jan 2026)
4. DIFC Courts, Law / enforcement updates (Law No. 2 / 2025)
5. Pinsent Masons / Out-Law, Arbitration gain traction in the UAE legal landscape
6. Vinson & Elkins, Middle East Dispute Resolution Compendium 2026
7. Lexology, DIAC Mediation Rules practice note