On May 24, 2010, the U.S. Supreme Court granted certiorari in Mobility LLC v. Concepcion, No. 09-893, to address the question of whether the Federal Arbitration Act (FAA) preempts state law rules limiting the enforceability of arbitration agreements. In Concepcion, the Supreme Court will consider whether the FAA preempts California state court decisions that class action waivers are unconscionable in consumer arbitration agreements as a matter of public policy. Because courts in many states have held that class action waivers may be found unconscionable under state contract law principles, the Supreme Court’s decision has the potential to mark a significant shift in consumer arbitration, as well as arbitration in similar contexts such as employment.

In Concepcion, two customers filed a class action against AT&T Mobility LLC (AT&T) alleging various violations of consumer protection statutes. AT&T moved to compel individual arbitration pursuant to an arbitration agreement which contained an express class action waiver. 407 F. Supp. 2d 1181 (S.D. Cal. 2005). The U.S. District Court for the Southern District of California denied the motion, holding that the arbitration agreement was unconscionable under California law because it contained a class action waiver. On appeal, the U.S. Court of Appeals for the Ninth Circuit affirmed, holding that the class action waiver was unconscionable because (1) it was contained within a contract of adhesion, (2) the dispute involved small amounts of damages, and (3) the plaintiffs alleged a scheme to deliberately cheat large numbers of consumers out of small amounts of money. Laster v. AT&T Mobility LLC, 584 F.3d 849, 854-55 (9th Cir. 2009). Like the district court, the Ninth Circuit held that “[t]he FAA does not bar federal or state courts from applying generally applicable state contract law principles and refusing to enforce an unconscionable class action waiver in an arbitration clause.” Id. at 856-57 (internal quotation omitted). The Supreme Court granted certiorari to determine whether the FAA preempts state law unconscionability standards.