Following the plurality opinion in Green Tree Financial Corp. v. Bazzle (2003) 123 S.Ct. 2402, this 4-3 decision holds that whether an arbitration clause permits classwide arbitration is an issue for the arbitrator to determine unless the arbitration agreement provides otherwise.

California Supreme Court (Werdegar, J.; Kruger, J., dissenting); July 28, 2016; 2016 WL 4045008