| Nevertheless, the Supreme Court's unequivocal stand to date |
| as to the preemptive effect of the FAA provides strong reason |
| to believe that a similar result will obtain with regard to |
| Section 10(a) grounds for vacatur. If it does, and if the |
| Supreme Court eventually determines that the Section 10(a) |
| standards are the sole grounds for vacatur of commercial |
| arbitration awards, FAA preemption of conflicting state law |
| with regard to the "back end" issues of vacatur (and |
| confirmation and modification) would be certain. If the Court |
| takes the opposite tack and holds that the Section 10(a) |
| grounds are not the exclusive criteria for vacatur, the |
| preemptive effect of Section 10(a) would most likely be |
| limited to the rule that state arbitration acts cannot |
| eliminate, limit or modify any of the four grounds of party |
| and arbitrator misconduct set out in Section 10(a). Any |
| definitive federal "common law," pertaining to the |
| nonstatutory grounds for vacatur other than those set out in |
| Section 10(a), articulated by the Supreme Court or established |
| as a clear majority rule by the United States Courts of |
| Appeals, likely would preempt contrary state law. A holding by |
| the Supreme Court that the Section 10(a) grounds are not |
| exclusive would also free the States to codify other grounds |
| for vacatur beyond those set out in Section 10(a). |