UNCITRAL ArbUNCITRAL Arbitration Rules (2021)

Introductory rules

Scope of application

Art. 1

Notice and calculation of periods of time

Art. 2

Notice of arbitration

Art. 3

Response to the notice of arbitration

Art. 4

Representation and assistance

Art. 5

Designating and appointing authorities

Art. 6

Composition of the arbitral tribunal

Number of arbitrators

Art. 7

Appointment of arbitrators

Art. 8 Art. 9 Art. 10

Disclosures by and challenge of arbitrators**

Art. 11 Art. 12 Art. 13

Replacement of an arbitrator

Art. 14

Repetition of hearings in the event of the replacement of an arbitrator

Art. 15

Exclusion of liability

Art. 16

Arbitral proceedings

General provisions

Art. 17

Place of arbitration

Art. 18

Language

Art. 19

Statement of claim

Art. 20

Statement of defence

Art. 21

Amendments to the claim or defence

Art. 22

Pleas as to the jurisdiction of the arbitral tribunal

Art. 23

Further written statements

Art. 24

Periods of time

Art. 25

Interim measures

Art. 26

Evidence

Art. 27

Hearings

Art. 28

Experts appointed by the arbitral tribunal

Art. 29

Default

Art. 30

Closure of hearings

Art. 31

Waiver of right to object

Art. 32

The award

Decisions

Art. 33

Form and effect of the award

Art. 34

Applicable law, amiable compositeur

Art. 35

Settlement or other grounds for termination

Art. 36

Interpretation of the award

Art. 37

Correction of the award

Art. 38

Additional award

Art. 39

Definition of costs

Art. 40

Fees and expenses of arbitrators

Art. 41

Allocation of costs

Art. 42

Deposit of costs

Art. 43