Knowing when to challenge an arbitrator's appointment can protect the fairness of an arbitration. The strongest grounds usually concern a conflict of interest, circumstances creating justifiable doubts about impartiality or independence, or failure to meet qualifications agreed by the parties. Disagreement with a procedural decision is not, by itself, enough.

For Jamaican businesses, the decision also requires attention to the arbitration agreement, the applicable rules and the law of the arbitration's seat. A sound objection can be lost through delay. An unsupported challenge can increase costs without improving the position of the party bringing it.

When should you challenge an arbitrator's appointment?

Act promptly when credible facts suggest that the arbitrator cannot satisfy the applicable requirements for independence, impartiality or agreed qualifications. You do not necessarily need proof that the arbitrator has deliberately favoured another party. The relevant legal test may address the objectively justified appearance of bias.

At the same time, suspicion is not enough. Identify the relationship, interest or conduct causing concern, establish what evidence supports it and check the governing challenge procedure.

Jamaica's Arbitration Act 2017 provides a modern, Model Law-based framework. For a Jamaica-seated arbitration, the Act should be considered alongside the parties' agreement and any incorporated institutional rules. For an arbitration seated elsewhere, that jurisdiction's arbitration law will generally govern court supervision of the challenge.

The seat is the arbitration's legal home, not necessarily the location of the hearing. A Jamaican party or Jamaican governing law does not automatically make Jamaica the seat.

Grounds that can justify a challenge

Conflicts affecting independence or impartiality

Independence concerns relationships or interests that could compromise the arbitrator's position. Impartiality concerns whether the arbitrator approaches the dispute without favouring a party or prejudging the issues. The concepts overlap, but neither requires the arbitrator to have no professional connections whatsoever.

Potential concerns include a significant financial interest in a party, a close personal relationship with a relevant decision-maker or substantial ongoing professional work for one side. Prior involvement in the transaction or dispute can also require close examination.

The assessment depends on the facts. Consider the relationship's significance, recency and connection to the dispute. A remote historical association is different from an ongoing relationship generating substantial income.

Under the UNCITRAL Model Law's provisions on arbitrator challenges, the central standard is circumstances giving rise to justifiable doubts as to impartiality or independence.

Incomplete disclosure or newly discovered relationships

An arbitrator should disclose relevant circumstances when approached about an appointment and as the arbitration progresses. A later appointment, new business relationship or previously overlooked connection may therefore require further disclosure.

Failure to disclose is relevant, but it does not automatically establish disqualification. The underlying circumstances still matter. Ask what was omitted, why it mattered and whether the omission affects the assessment of impartiality or independence.

In Halliburton Company v Chubb Bermuda Insurance Ltd, the UK Supreme Court examined overlapping appointments and disclosure duties. It found a disclosure failure but did not remove the arbitrator for apparent bias on the circumstances before it. The decision concerns English law, so it should not be treated as a ruling on Jamaican procedure.

The practical lesson is to distinguish the duty to disclose from the separate question of whether removal is justified.

Failure to meet agreed qualifications

The arbitration clause may require a particular professional qualification, industry background or other eligibility condition. An appointee who does not satisfy an enforceable requirement may be open to challenge even without a conflict of interest.

Read the wording carefully. A requirement for a qualified engineer is different from a general preference for someone with construction experience. Likewise, a party's unstated expectation cannot ordinarily be treated as an agreed qualification.

The Model Law also limits challenges to an arbitrator whom a party appointed, or whose appointment it participated in: the challenge must concern reasons of which that party became aware after the appointment. Keep records showing when the relevant information first emerged.

Concerns that do not automatically justify removal

An adverse procedural ruling is not, without more, evidence of bias. Refusing an extension, limiting repetitive evidence or rejecting a jurisdictional argument may be ordinary tribunal decision-making.

Similarly, an arbitrator's published legal views or previous appointments do not automatically establish a disqualifying conflict. Their significance depends on their connection to the parties and issues. An arbitrator who has expressed a general view on contract interpretation is not necessarily equivalent to one who has already advised on the disputed contract.

The 2024 IBA Guidelines on Conflicts of Interest in International Arbitration can help organise the assessment of relationships and disclosures. They are soft-law guidance, not legislation, and their role depends on the applicable framework. Their examples should not replace analysis of the governing legal test.

Delay or inability to perform the role may require a different procedure addressing failure or impossibility to act. Do not force every concern into a bias challenge when another statutory or contractual route is more appropriate.

Act quickly: which challenge deadline applies?

There is no safe universal deadline for challenging an arbitrator. Start with the arbitration clause, the chosen rules and the law of the seat. Record both the appointment information and the date on which the relevant facts became known.

The Model Law provides these reference points:

These are Model Law timeframes, not a substitute for checking the operative Jamaican provisions or the law of another seat. An agreed institutional procedure may replace the initial default procedure. Court referral requirements must be checked separately under the applicable law.

Do not assume that requesting clarification pauses the deadline, or that an institution's timetable extends a statutory court deadline. A challenge may need to be filed while further information is still being investigated.

Delay can also raise waiver arguments, particularly where a party knew of a concern but continued without objection. When preparing for a high-value arbitration, include appointment reviews and disclosure checks in the initial case plan rather than leaving them until the hearing approaches.

How to prepare a well-supported challenge

Build a factual record before making allegations

A useful challenge identifies the facts, explains their relevance to the governing test and states the requested outcome. Avoid allegations of dishonesty or corruption unless the evidence genuinely supports them. Strong language cannot cure a weak factual foundation.

Collect the documents needed to assess both the merits and timeliness of the objection:

• The arbitration agreement and applicable arbitration rules.

• The appointment notice, acceptance and conflict disclosures.

• Reliable evidence of the relationship, interest or conduct causing concern.

• A chronology recording when each material fact became known.

• Relevant correspondence, including requests for clarification and responses.

Separate established facts from inferences. For example, evidence that an arbitrator's firm has acted for a party does not, by itself, establish the arbitrator's involvement or the relationship's financial significance.

A focused disclosure request may clarify those points. It should ask for information relevant to the conflict assessment, rather than seek broad access to confidential professional records without justification.

Use the correct decision-maker and procedure

Depending on the applicable framework, the challenge may be decided by an arbitral institution, the tribunal or another designated authority. A court application may become available after that process, subject to statutory requirements.

Follow the prescribed requirements for form, service and supporting material. A well-founded objection sent to the wrong recipient may not protect your position.

Under the Model Law's default procedure, the challenging party sends a written statement of reasons to the tribunal. Unless the challenged arbitrator withdraws or the other party agrees to the challenge, the tribunal decides it. Institutional rules can provide a different initial process.

The submission should connect each material fact to the legal ground relied on. If the issue is an agreed qualification, quote the relevant clause. If it concerns impartiality, explain why the circumstances create objectively justified doubts rather than merely stating that confidence has been lost.

An arbitrator's voluntary withdrawal can resolve the appointment issue without necessarily admitting that the challenge was valid.

Does a challenge stop the arbitration?

A challenge does not necessarily suspend the proceedings. Under the Model Law framework, the tribunal, including the challenged arbitrator, may continue the arbitration and make an award while a court challenge is pending. The applicable rules and law must still be checked.

If continuing would create a specific procedural problem, consider whether to request a stay or adjustment to the timetable. Explain the practical prejudice rather than assuming that suspension follows automatically.

Meanwhile, maintain compliance with procedural directions unless a competent decision-maker orders otherwise. Refusing to participate can create additional difficulties and does not necessarily strengthen the challenge.

Understanding the stages of arbitration from notice of dispute to award helps identify which steps may continue during the challenge. It also allows the legal team to protect hearing preparation and evidence deadlines while addressing the appointment issue.

What if the challenge is rejected?

A rejection should trigger an immediate review of any available court route and its deadline. It should also prompt a reassessment of the evidence, the applicable standard and the commercial consequences of further proceedings.

Keep the challenge papers and decisions in an organised record. Questions about tribunal composition or procedural fairness can become relevant to setting aside or resisting enforcement of an award, but those remedies have their own grounds, limits and deadlines.

An unsuccessful challenge does not automatically invalidate a later award. Nor should a party assume that it can save a known objection for the enforcement stage. Failure to use an available challenge procedure promptly can affect later arguments.

Assess the next step against the strength of the legal case and the interests at stake, not simply dissatisfaction with the initial decision.

Frequently asked questions

Can I challenge an arbitrator appointed by my own side? Potentially. Under the Model Law approach, a party may challenge an arbitrator it appointed, or whose appointment it participated in, only for reasons it became aware of after the appointment. Check the applicable law and rules before proceeding.

Is failure to disclose a relationship enough to remove an arbitrator? Not necessarily. Non-disclosure is relevant, but the nature of the relationship and the governing impartiality or independence test remain central. Disclosure and disqualification are distinct questions.

Can repeated appointments by the same party justify a challenge? They can warrant investigation and disclosure. Their significance depends on the circumstances, including frequency, financial importance and overlap between disputes. Repeated appointments are not automatically disqualifying in every case.

Should I wait until the arbitrator makes an adverse ruling? No. If credible grounds are already known, waiting may jeopardise the challenge. An adverse ruling is neither a necessary trigger nor, on its own, proof of bias.

Does Jamaican law apply whenever a Jamaican business is involved? No. The seat, arbitration agreement and applicable rules must be examined. A Jamaican party's involvement does not alone determine the law governing the appointment challenge.

Obtain advice before the deadline passes

If an appointment raises a genuine concern, seek advice while preserving the evidence and recording when the relevant facts became known. The immediate priorities are to identify the governing procedure, calculate the deadline and assess whether the concern meets the legal threshold.

Henlin Gibson Henlin provides arbitration and commercial litigation services. Bring the arbitration clause, appointment notice, disclosures and supporting correspondence to an early consultation so the available options can be assessed.

This article provides general information, not legal advice on a particular arbitration.