Class action opt-out rights
Zamrzla v. Antelope Valley Watermaster
In brief
- Where it stands
- Dismissed
Petition denied.
- What it’s about
- Johnny Zamrzla and other petitioners ask whether people represented in a group lawsuit must receive fair legal procedures, including a chance to opt out, before a judgment substantially affects their property rights or imposes monetary liability.
- Who it affects
- The denial ended Zamrzla and the other petitioners’ request for Supreme Court review, but did not decide what procedures absent class members must receive.
Summary: written with AI from the case record.

What it's about
Zamrzla and the other petitioners sought Supreme Court review of a California appeals court case involving the Antelope Valley Watermaster.
Question presented
1. What minimum due process protections are required before absent class members may be bound by a class judgment that substantially impairs their real-property rights and exposes them to monetary liability, rather than merely extinguishing claims for money damages? 2. Does due process require that class members be afforded the right to opt out of the class action where the action does not predominantly concern monetary claims but nonetheless adjudicates monetary claims against class members who are subject to the forum court’s personal jurisdiction?
Documents
Docket activity
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AI analysis generated: Case Briefing
AI analysis generated: Decision Record
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Sources
Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.