From Yokoyama v. Midland Nat’l Life Ins. Co., 594 F.3d 1087 (9th Cir. 2010):
[W]hen a district court's class action certification is on appeal, we say that the overall standard of review is for abuse of discretion. *** In addition, when any particular underlying Rule 23 determination involving a discretionary determination is appealed, ...
From Yokoyama v. Midland Nat’l Life Ins. Co., 594 F.3d 1087 (9th Cir. 2010):
[W]hen a district court’s class action certification is on appeal, we say that the overall standard of review is for abuse of discretion. *** In addition,…