HB 534 Missouri House · 2025 Regular Session

Modifies Supreme Court Rule 52.08 relating to class actions

HB 534 modifies Supreme Court Rule 52.08 to clarify procedures for class action lawsuits. It updates the requirements for certifying a class action, including stricter standards for when courts can approve such cases and clearer rules for notifying potential class members about their rights to opt out. The bill specifically addresses how courts must define the class, appoint attorneys, and provide notice in cases where individual claims might be resolved separately. This procedural change directly affects courts, plaintiffs, defendants, and individuals participating in class action lawsuits.

Bill status in committee 1 of 4 stages cleared

Introduction

Dec 2024

Committee Review

Floor Vote

Governor

Introduced Dec 12, 2024 Last action Apr 28, 2025

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What changed between versions

Introduced → House Committee Substitute · 4 edits

MODERATE

This bill amends Supreme Court Rule 52.08 to modernize class action procedures by consolidating prerequisites into a single paragraph, adding a new category for class actions where the opposing party's conduct affects the entire class, and clarifying notice requirements for certified class actions. The changes streamline the legal framework for class litigation and expand protections for class members.

Scope change

The rule now applies more clearly to situations where a defendant's actions affect an entire class, not just individual members, and adds specific requirements for notifying class members in certain types of class actions.

REQUIREMENT

Consolidated the prerequisites for class actions into one paragraph for clarity and removed redundant language about joinder impracticability.

Added specific notice requirements for class members in Rule 52.08(b)(3) cases, including the right to exclude themselves and the right to appear through counsel.

Clarified that judgments must describe class members differently depending on the type of class action, with more detailed notice requirements for Rule 52.08(b)(3) cases.

ELIGIBILITY

Added a new condition allowing class actions when the opposing party's conduct applies generally to the entire class, making injunctive or declaratory relief appropriate.

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Full legislative history

Actions timeline

Total actions

Key actions

Committee

Mar 25, 2025

Lower · Passed

Reported Do Pass (H) - AYES: 8 NOES: 0 PRESENT: 0

lower

Mar 25, 2025

Lower · Passed

Voted Do Pass (H)

lower

Feb 27, 2025

Committee

Referred: Rules - Administrative(H)

lower

Feb 19, 2025

Lower · Passed

HCS Reported Do Pass (H) - AYES: 13 NOES: 0 PRESENT: 0

lower

Feb 17, 2025

Lower · Passed

HCS Voted Do Pass (H)

lower

Jan 22, 2025

Committee

Referred: Emerging Issues(H)

lower

Dec 12, 2024

Introduced

Prefiled (H)

lower

1 primary · 0 co-sponsors