Nev. Rev. Stat. § 38.241

1. Upon motion to the court by a party to an arbitral proceeding, the court shall vacate an award made in the arbitral proceeding if: (a) The award was procured by corruption, fraud or other undue means; (b) There was: (1) Evident partiality by an arbitrator appointed as a neutral arbitrator; (2) Corruption by an arbitrator; or (3) Misconduct by an arbitrator prejudicing the rights of a party to the arbitral proceeding; (c) An arbitrator refused to postpone the hearing upon showing of sufficient cause for postponement, refused to consider evidence material to the controversy, or otherwise conducted the hearing contrary to NRS 38.231 , so as to prejudice substantially the rights of a party to the arbitral proceeding; (d) An arbitrator exceeded his or her powers; (e) There was no agreement to arbitrate, unless the movant participated in the arbitral proceeding without raising the objection under subsection 3 of NRS 38.231 not later than the beginning of the arbitral hearing; or (f) The arbitration was conducted without proper notice of the initiation of an arbitration as required in NRS 38.223 so as to prejudice substantially the rights of a party to the arbitral proceeding.

2. A motion under this section must be made within 90 days after the movant receives notice of the award pursuant to NRS 38.236 or within 90 days after the movant receives notice of a modified or corrected award pursuant to NRS 38.237 , unless the movant alleges that the award was procured by evident partiality, corruption, fraud or other undue means, in which case the motion must be made within 90 days after the ground is known or by the exercise of reasonable care would have been known by the movant.

3. If the court vacates an award on a ground other than that set forth in paragraph (e) of subsection 1, it may order a rehearing. If the award is vacated on a ground stated in paragraph (a) or (b) of subsection 1, the rehearing must be before a new arbitrator. If the award is vacated on a ground stated in paragraph (c), (d) or (f) of subsection 1, the rehearing may be before the arbitrator who made the award or the arbitrator's successor. The arbitrator must render the decision in the rehearing within the same time as that provided in subsection 2 of NRS 38.236 for an award.

4. If the court denies a motion to vacate an award, it shall confirm the award unless a motion to modify or correct the award is pending.