Seven stages, seven decisions

Each stage of an arbitration produces an act and calls for a decision: file, answer, appoint, plan, plead, deliberate, render. Knowing them in advance makes it possible to prepare each moment and avoid timetable errors.
The Registry accompanies the parties at every stage and reports each advance on the Desk. The arbitrators follow the time limits set at the start of the proceedings.
This page details the seven stages, with their purpose, usual duration and the points requiring vigilance.
Stages of arbitration in figures
Source: Registry of the OIMAP Arbitral Tribunal.
1. Request and 2. answer
The request opens the case; the respondent's answer, within thirty days, states its defences and any counterclaims. These two acts fix the framework of the dispute: later new claims require the tribunal's authorisation.
The Registry ensures that each party receives the other's act within two days. It also informs of the possibility of mediation, without suspending the procedure.



3. Constitution and 4. first meeting
The parties appoint the arbitrators within thirty days. Failing that, the tribunal's council appoints them. The arbitrators declare their links, and the parties may object within fifteen days. Once the tribunal is constituted, it convenes a first meeting, generally by videoconference.
This meeting sets the timetable, the language, the seat, the applicable law, the rules of evidence and the hearing date. A procedural order records these decisions and is binding.
5. Briefs, 6. hearing, 7. award
The claimant files its brief, the respondent answers, then each may file a reply. Documents and written witness statements are attached. The hearing allows pleading and questioning. After the close of the debates, the tribunal deliberates and makes its award within sixty days.
The award is reasoned, signed and notified to the parties by the Registry. It has the force of res judicata from the moment it is made. Correction of a clerical error may be requested within thirty days.
After the award
The award is final. It may be challenged only by an action for annulment before the judge of the seat of arbitration, on limited grounds: lack of jurisdiction, breach of public policy, infringement of the rights of the defence. This action does not suspend enforcement unless otherwise decided.
Most awards are complied with voluntarily. In other cases, exequatur makes it possible to have them enforced, notably thanks to the New York Convention.
Summary of stages
| Stage | Act | Author |
|---|---|---|
| 1 | Requête | Applicant |
| 2 | Answer | Respondent |
| 3 | Constitution | Parties and counsel |
| 4 | First meeting | Tribunal |
| 5 | Briefs | Parties |
| 6 | Hearing | Tribunal and parties |
| 7 | Award | Tribunal |
Milestones
- Requête
Filing.
- Answer
Respondent.
- Tribunal
Constitution.
- First meeting
Timetable.
- Hearing
Debates.
- Award
Decision.
Once the timetable is fixed



Written or oral procedure

Written
On documents- Faster
- Less costly
- Suited to technical disputes
If the parties agree.

Oral
With a hearing- Examinations
- Direct debates
- More costly
Useful where there are witnesses.
Preparing for each stage
- Requête
Draft precisely.
- Answer
Gather the arguments.
- Tribunal
Choose the arbitrator.
- Brief
Structure the arguments.
- Hearing
Prepare the witnesses.
Checks at each stage
A deputy registrar

« Parties who prepare the timetable with us from the outset often gain several weeks. »
Vocabulary of stages
- Procedural order
- Decision setting the rules for the conduct of proceedings.
- Reply
- Answer to the opponent's brief.
- Close of the debates
- End of the proceedings.
- Correction
- Correction of a clerical error.
Frequently asked questions
Can claims be added?
With the tribunal's authorisation.
Who chooses the arbitrators?
The parties, otherwise the council.
Is the award reasoned?
Yes.
Where can I see the time limits?
See Time limits.
Useful documents
Contacts

Consult the time limits
Image credits (16)
- Sketches in Belgium and Germany, Volume I: Hall of Justice of the Magistrates du Franc, Bruges, Louis Haghe (1840) — Cleveland Museum of Art, CC0 1.0
- Portrait of John VIII Palaoelogus, Emperor of Constantinople, 1424-1428 (reverse), Pisanello (c. 1438–1439) — Cleveland Museum of Art, CC0 1.0
- The Antechamber of the Palace of Justice, Paris, Charles Meryon (1855) — Cleveland Museum of Art, CC0 1.0
- Teapot with Landscape and Imperial Poem, Chen Hanwen (1762–95) — Cleveland Museum of Art, CC0 1.0
- The Judgment of Solomon and Esther before Ahasuerus (pair), Dirk Vellert (c. 1530) — Cleveland Museum of Art, CC0 1.0
- The Victory Banquet: from Battle Scenes of the Quelling of Rebellions in the Western Regions, with Imperial Poems (c. 1765–74; poem dated 1760) — Cleveland Museum of Art, CC0 1.0
- Dr. James Stuart; Mary Campbell Stuart, Gilbert Stuart (c. 1815) — Cleveland Museum of Art, CC0 1.0
- Document Box (Ryōshibako) with Chrysanthemum and Plum (lid) (late 1800s-early 1900s) — Cleveland Museum of Art, CC0 1.0
- The Calumny of Apelles, Giorgio Ghisi (1560) — Cleveland Museum of Art, CC0 1.0
- Coronation of the Virgin, Christoffel Jegher (1632–36) — Cleveland Museum of Art, CC0 1.0
- The Dance at the Court of Herod, Israhel van Meckenem (c. 1500) — Cleveland Museum of Art, CC0 1.0
- The Apotheosis of Romulus: Design for a Ceiling, Domenico Maria Canuti (c. 1675–76) — Cleveland Museum of Art, CC0 1.0
- Plaque (1500s–1600s) — Cleveland Museum of Art, CC0 1.0
- Letter Box, Ogata Kōrin (1700s) — Cleveland Museum of Art, CC0 1.0
- Seal Color Box (1662–1722) — Cleveland Museum of Art, CC0 1.0
- Fish or Seal Club (X’ús’) (late 1800s–early 1900s) — Cleveland Museum of Art, CC0 1.0
Cleveland Museum of Art · CC0 1.0
Arbitration procedureFrom request to award: the stages, time limits and hearings of an arbitration before the TAO, with a typical eleven-month timetable.›
Time limits of the procedureStatutory time limits, time limits set by the tribunal, extensions and sanctions: how the timetable of an arbitration is kept.›
Arbitration hearingsPreparation, conduct and organisation of TAO hearings, on site or remotely: witnesses, experts, interpreters and confidentiality.›