KMK Law Complex Litigation Blog

Last week, the Ninth Circuit deepened the divide among the Circuits regarding ascertainability in class certification. In Briseno v. ConAgra Foods, Inc., 2017 U.S. App. Lexis 20 (9^th Cir. Jan. 3, 2017), the Ninth Circuit rejected the Third Circuit’s line of authority (see Carrera v. Bayer Corp., 727 F.3d 300 (3d Cir. 2013) and Byrd v. Aaron’s Inc., 784 F.3d 154 (3d Cir. 2015)) which requires plaintiffs’ counsel to show ascertainability by demonstrating an administratively feasible and reliable method to determine class membership at the class certification stage.