Court of Appeal clarifies “new evidence” and individual issues for class decertification in wage and hour claims: Allison v. Dignity Health

In Allison v. Dignity Health,          Cal.App.5th           (Jun. 26, 2025), the Court of Appeal (First Appellate District, Division Four) clarified the criteria for decertification of a class action, particularly concerning what constitutes “new evidence” and the impact of individual issues on class manageability for wage and hour claims.

Read more

Plaintiff Allison, a registered nurse, sued alleging various wage and hour violations. She moved for class certification, seeking meal and rest break subclasses based on allegations that Defendant required employees to wear work-issued communication devices during breaks. The trial court granted certification in part, denying only a “reporting time” subclass. Defendant subsequently moved for decertification, citing conflicting class member declarations, deficiencies in call logs, unreliable survey data, an unworkable trial plan, and “irreconcilable conflicts” between class members. The trial court granted decertification, agreeing with Defendant’s arguments and finding that “individual issues swamp the common issues” based on new evidence. Plaintiffs appealed.

The Court of Appeal affirmed the order decertifying the class. It held that Plaintiffs’ post-certification declarations and statistical analysis constituted “new evidence” under Weinstat v. Dentsply lnternat., Inc. (2010) 180 Cal.App.4th 1213, clarifying that “ ‘newly discovered’ evidence is not limited to newly existing facts” (Occidental Land, Inc. v. Superior Court (1976) 18 Cal.3d 355). The Court of Appeal found no abuse of discretion in the trial court’s disregard of survey data from Plaintiff’s expert, noting Plaintiffs’ failure to address self-selection bias given the low response rate (Duran v. U.S. Bank National Assn. (2018) 19 Cal.App.5th 630). Applying the Donohue v. AMN Services, LLC (2021) 11 Cal.5th 58 burden-shifting framework, the court concluded that Defendant’s evidence of “idiosyncratic reasons for noncompliant meal periods” defeated class treatment. Finally, the Court of Appeal found that Plaintiffs failed to challenge the trial court’s basis for decertifying the rest break subclass, namely its determination that Plaintiffs failed to establish a uniform practice of nurses being on call during breaks or to provide reliable common proof through phone records.

Full opinion

Scroll to Top