The arbitral award has the effect of res judicata and is immediately enforceable.
The arbitral award is not subject to any ordinary or extraordinary appeal. In most legal systems, only an action for annulment may be brought against the award.
By means of an action for annulment, the judge can rescind the validity of the award and its res judicata effect, but not modify or “rewrite” what was decided.
If the annulment action is successful, the parties will generally have to submit the same dispute to arbitration again.
Each State is free to determine the grounds on which an award made within its territory or under its laws may be set aside or annulled. However, the vast majority of jurisdictions recognize the same limited grounds, namely:
See Art. 41.1 of the Arbitration Act 60/2003, of December 23, and Art. 34 of the UNCITRAL Model Law on International Commercial Arbitration.
An arbitral award may be annulled only by the judicial authority of the State where the seat of arbitration is located or the State under whose law the award was made. See Art. V(1)(6) of the Convention on the Recognition and Enforcement of Foreign Arbitral Awards, made in New York on June 10, 1958