The federal class-action rule contains a provision, Rule 23(b)(2), that authorizes class-wide injunctive or declaratory relief for class-wide wrongs. The procedural needs of civil rights litigation motivated the adoption of the provision in 1966, and in the intervening years, it has played an important role in managing efforts to bring about systemic change. At the same time, courts have sometimes struggled to articulate what plaintiffs must show in order to invoke Rule 23(b)(2). A few years ago, the Supreme Court weighed in, stating that the key to this type of class action is the “indivisible” nature of the remedy the plaintiffs seek. Some defendants have encouraged federal courts to adopt an extremely restrictive version of indivisibility, which I term “endpoint indivisibility,” as a standard for applying Rule 23(b)(2). This Article argues that an endpoint indivisibility requirement would be fundamentally inconsistent with the historical models for Rule 23(b)(2). Moreover, such a requirement would have devastating effects on civil rights litigation. An alternative standard, which I term “root-cause indivisibility,” offers a better logical and historical fit.
Carroll, Maureen. "Class Actions, Indivisibility, and Rule 23(b)(2)." B.U. L. Rev. 99, no. 1 (2019): 59-106.