HB 4412 Michigan House · 2025-2026 Regular Session

Mental health: hospitalization; person requiring treatment; revise, and modify certain procedures for treatment. Amends secs. 401, 427, 430, 461, 468, 472a & 475 of 1974 PA 258 (MCL 330.1401 et seq.).

House Bill 4412 proposes changes to Michigan's mental health code, primarily affecting procedures for involuntary mental health treatment and hospitalization. It revises the definition of a "person requiring treatment," clarifying criteria for individuals with mental illness who may pose a risk to themselves or others or are unable to meet basic needs. The bill modifies procedures for peace officers taking individuals into protective custody, requiring them to execute a hospitalization petition and ensuring examinations at preadmission screening units. It also updates requirements for psychiatric examinations within 24 hours of hospitalization and alters the testimony rules for hearings to determine if an individual requires treatment. These changes aim to refine the process for assessing, hospitalizing, and treating individuals with severe mental illness.

Issues: ✓ Healthcare

Bill status passed both 4 of 5 stages cleared

Introduction

May 2025

Committee Review

Mar 2026

House Passage

Mar 2026

Senate Passage

Mar 2026

Governor

Introduced May 1, 2025 Last action Mar 24, 2026

Maddy AI version diff · 4 comparisons

What changed between versions

As Passed by the House → Substitute (H-1) · 2 edits

MINOR

The bill text was reformatted to replace the 'As Passed by the House' version with a 'Substitute' version, likely reflecting amendments made during the legislative process. The substantive legal definitions and requirements appear unchanged, though minor spacing adjustments were made to the text describing who qualifies as a 'person requiring treatment'.

TECHNICAL

The header was changed from 'As Passed House' to 'Substitute', indicating the bill has been amended and is now in a new version for further review or final passage.

Minor formatting adjustments were made to the spacing and indentation of the bill text, specifically around the definition of 'person requiring treatment'.

House Introduced Bill → As Passed by the House · 6 edits · Mar 18, 2026

MODERATE

This bill significantly updates Michigan's mental health code to modernize involuntary treatment procedures, clarify eligibility criteria, and expand the roles of non-physician professionals like psychiatric nurse practitioners. Key changes include adding specific exemptions for individuals with dementia or epilepsy, requiring family notification for peace officers taking people into custody, and establishing strict timelines for court orders and treatment reviews.

Scope change

The bill expands the scope of who can provide care and oversight by explicitly including psychiatric nurse practitioners and physician assistants in treatment and petition processes, while also clarifying that certain conditions like dementia do not automatically qualify someone for involuntary treatment.

ELIGIBILITY

Added specific exemptions stating that individuals with dementia, epilepsy, or substance use disorders are not automatically considered 'persons requiring treatment' unless they also meet the standard criteria for danger to self or others.

REQUIREMENT

Mandated that peace officers taking individuals into protective custody must notify family members and document the recipient's decision regarding contact, ensuring transparency in emergency interventions.

Updated examination requirements to allow psychiatric nurse practitioners and physician assistants to examine patients and testify in court, provided they have completed specific practice hours and work under a psychiatrist's supervision.

TIMELINE

Established clear maximum durations for involuntary treatment orders (e.g., 60 days for initial hospitalization, 180 days for assisted outpatient treatment) and required petitions for renewal to be filed at least 14 days before expiration.

ENFORCEMENT

Created a mechanism for courts to modify assisted outpatient treatment orders without a full hearing if an individual is not complying, allowing for quick adjustments to ensure safety.

DEFINITION

Formally defined 'psychiatric nurse practitioner' and 'qualified health professional' to clarify their legal authority and training requirements within the mental health code.

Floor votes · House Mar 18, 2026

How they voted

This bill passed the Senate by voice vote (no roll call recorded).

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Amendments

Mar 24, 2026

Committee

REFERRED TO COMMITTEE ON HEALTH POLICY

upper

Mar 24, 2026

Upper · Passed

PASSED BY HOUSE WITH IMMEDIATE EFFECT

upper

Mar 18, 2026

Introduced

title amended

lower

Mar 18, 2026

Lower · Passed

passed; given immediate effect Roll Call #97 Yeas 76 Nays 28 Excused 0 Not Voting 6

lower

Mar 18, 2026

Lower · Passed

substitute (H-2) adopted

lower

Mar 10, 2026

Lower · Passed

substitute (H-1) adopted

lower

Jan 21, 2026

Committee

referred to second reading

lower

Jan 21, 2026

Lower · Passed

reported with recommendation with substitute (H-1)

lower

May 1, 2025

Committee

referred to Committee on Health Policy

lower

May 1, 2025

Introduced

introduced by Representative Rep. Donni Steele

lower

1 primary · 6 co-sponsors