Persons Disqualified and Prohibited from Appointment as Arbitrators
Numerous definitions of arbitration have been provided, all conveying essentially the same meaning with minor variations. A comprehensive definition may be stated as follows.
Arbitration is an agreement by which the parties, either by mutual consent or by operation of law in cases of compulsory arbitration, submit an existing or potential dispute to private individuals, rather than to judicial authorities. These arbitrators examine the dispute without observing formal judicial procedures and within a specified period, and issue an appropriate decision.
Occupational and Legal Prohibitions on the Appointment of Arbitrators
Advantages of Arbitration
Arbitration offers several benefits, including the following:
- Saving time.
- Reducing costs.
- Allowing the parties to select an arbitrator whom they trust.
- Minimizing hostility between the parties after issuance of the award.
Note: If the parties do not exercise sufficient care in selecting an arbitrator, the resulting harm may exceed that of a court judgment.
- First, an arbitrator may lack adequate judicial expertise and is not strictly bound by procedural rules, increasing the risk of error.
- Second, while court judgments may be appealed for legal or substantive errors, arbitral awards are generally not appealable.
Persons Disqualified and Prohibited from Appointment as Arbitrators
Such persons are divided into three categories. These include individuals who absolutely lack legal capacity, individuals with relative incapacity, and officials who are legally prohibited from appointment as arbitrators.
Persons lacking legal capacity may not be appointed as arbitrators because appointment to arbitration is considered a social right. An individual deprived of social rights by operation of law cannot be appointed to this position. Lack of capacity may be either absolute or relative.
Absolute Incapacity
Absolute incapacity applies to individuals who may not be appointed as arbitrators under any circumstances, even with the consent of the parties, because their incapacity relates to public order. These individuals include the following:
- Persons lacking legal capacity.
- Persons who have been deprived of arbitration by a final court judgment or as a consequence thereof.
- In disputes involving an Iranian party and a foreign party, the Iranian party may not, prior to the emergence of a dispute, agree to the appointment of an arbitrator holding the nationality of the foreign party, even with mutual consent.
- All judges and administrative employees currently serving in judicial courts.
Relative Incapacity
Relative incapacity applies to individuals whom the court may not appoint as arbitrators unless both parties expressly consent. These individuals include the following:
- Persons under the age of twenty-five.
- Persons having a direct interest in the dispute.
- Persons related by blood or marriage to either party up to the second degree of the third class.
- Persons who are guardians, guarantors, attorneys, or agents of one of the parties, or whose affairs are managed by one of the parties.
- Persons who themselves or whose spouses are heirs of one of the parties.
- Persons who have had criminal proceedings, whether past or ongoing, with one of the parties or with close relatives of the parties up to the second degree of the third class.
- Persons who themselves, their spouses, or their close relatives up to the second degree of the third class are involved in civil proceedings with one of the parties or their relatives.
- Government employees within the scope of their official duties.
Officials Prohibited from Appointment as Arbitrators
Pursuant to Article One of the Law on the Prohibition of Intervention of Ministers, Members of Parliament, Government Employees, and State Officials, enacted on January 11, 1999, the following persons are prohibited from appointment as arbitrators:
- The Prime Minister, ministers, deputies, and members of parliament.
- Ambassadors, provincial governors, county governors, mayors, and members of city councils.
- Civil and military officials and employees of the state, municipalities, and affiliated institutions.
- Employees and managers of any organization, enterprise, company, bank, or branch in which the majority of shares, interests, management, administration, or supervision belongs to the state, municipalities, or affiliated entities.
- Persons who receive continuous salaries, stipends, fees, or remuneration from the state treasury, parliament, or the institutions mentioned above.
- Managers and employees of charitable organizations that receive assistance from the state or municipalities.
- Companies or institutions in which five percent or more of the shares, capital, or interests belong to any of the aforementioned persons, or in which management, administration, supervision, or inspection is conducted by such persons, except for companies with one hundred fifty or more shareholders, provided that none of the prohibited persons holds more than five percent of the shares or exercises managerial or supervisory authority.
- Companies in which the majority of shares, capital, or interests belong to companies described above may not participate in transactions or arbitration involving disputes with the state, parliament, municipalities, affiliated institutions, or the entities mentioned herein, regardless of whether such disputes have been formally submitted to legal authorities.
In addition, the parents, siblings, spouses, children, sons in law, and daughters in law of the persons listed above, as well as companies and institutions in which such relatives hold interests or positions as described, may not enter into arbitration agreements with ministries, banks, municipalities, organizations, or institutions in which those persons hold ministerial, deputy, or managerial positions.
Frequently Asked Questions About Disqualified and Prohibited Arbitrators
Arbitration is an agreement whereby the parties submit their dispute to private arbitrators rather than to courts. Its advantages include saving time and costs, selecting a trusted arbitrator, and reducing hostility after issuance of the award.
Persons lacking legal capacity, individuals deprived of arbitration by court judgment, judges and judicial staff, and, in certain cases, individuals holding the nationality of the foreign party may not serve as arbitrators.
Persons under twenty five, individuals with an interest in the dispute, close relatives of the parties, legal representatives of the parties, and persons involved in civil or criminal proceedings with the parties may serve as arbitrators only with mutual consent.
Ministers, members of parliament, ambassadors, governors, mayors, government employees, managers of state affiliated entities, and their close relatives are prohibited from appointment as arbitrators.
Improper selection of an arbitrator may result in serious errors. Because arbitral awards are generally not subject to appeal, careful selection of arbitrators is critical. What is arbitration and what are its advantages?
Who is legally prohibited from serving as an arbitrator?
Who falls under relative incapacity for arbitration?
Which officials are prohibited from arbitration?
Why is arbitrator eligibility important?





Can both sides agree to use someone as an arbitrator even if they’re related to one of the parties?
In some situations, the law allows the parties to agree on an arbitrator despite certain relationships. However, there are also categories of people who cannot serve as arbitrators regardless of consent. It depends on the specific legal restriction involved, so the circumstances should be reviewed carefully.
If I find out later that the arbitrator wasn’t actually eligible, does that automatically make the decision invalid?
Not necessarily. The effect of an arbitrator’s ineligibility depends on the applicable law and the particular facts of the case. If eligibility is in question, it is important to review the arbitration process and the relevant legal provisions before reaching any conclusion.
Are retired judges allowed to act as arbitrators, or is that restricted too?
The answer depends on the jurisdiction and the applicable legal rules. In many cases, current judicial officers face restrictions, while retired judges may be treated differently. Reviewing the governing law is essential before making an appointment.
What if both businesses accidentally choose someone who has a financial interest in the dispute?
A financial interest can raise serious concerns about impartiality. Whether that affects the validity of the appointment depends on the governing law and the nature of the interest. If such an issue arises, the matter should be evaluated as early as possible.
Does the age requirement apply if the arbitrator has years of professional experience?
Experience is certainly valuable, but legal eligibility requirements are separate from professional qualifications. If the law sets an age restriction, that requirement generally needs to be considered regardless of experience.
Can an employee of one of the companies be selected if both sides trust that person?
That depends on the applicable legal framework and whether the individual falls within a restricted category. Even when both parties have confidence in someone, certain legal prohibitions may still apply. A review of the specific circumstances would be appropriate.
Is there a deadline for objecting if you think the arbitrator shouldn’t have been appointed?
Many arbitration rules include procedures and time limits for raising objections, but these can vary depending on the governing law and the arbitration agreement. Acting promptly is generally advisable whenever a concern about eligibility arises.
If someone acted as my lawyer a few years ago, can they later be the arbitrator in a dispute involving me?
Prior professional relationships can raise questions about independence or impartiality. Whether that relationship prevents an appointment depends on the applicable legal rules and the facts involved. If you are facing this situation, it would be wise to have the matter reviewed before the arbitration proceeds.
Can the parties replace an arbitrator after the case has already started?
In many cases, replacing an arbitrator is possible under certain circumstances, such as resignation, disqualification, or another valid legal reason. The procedure will depend on the arbitration agreement and the governing rules.
Are these restrictions the same in every country, or do they change depending on where the arbitration takes place?
They can vary significantly between jurisdictions. While many legal systems require arbitrators to be independent and impartial, the specific eligibility rules and prohibited categories are determined by the governing law and the applicable arbitration framework. If your matter involves more than one country, a jurisdiction specific review is recommended.