HB 4668 Michigan House · 2025-2026 Regular Session

Trade: business regulation; requirements and safety standards for developers of certain artificial intelligence models; provide for. Creates new act.

HB 4668, the "Artificial Intelligence Safety and Security Transparency Act," requires large AI developers (defined as companies spending at least $5 million on a single model or $100 million total in the past year) to implement detailed safety protocols for foundation models. These protocols must address critical risks like mass casualties, $1 billion+ property damage, or AI-enabled weapons, including testing procedures, incident response plans, and physical/digital security measures. Developers must publicly publish safety protocols by 2026 and release quarterly transparency reports detailing risk assessments, critical risk thresholds, and any incidents. The law directly affects major AI companies building advanced systems, mandating concrete safety steps rather than vague guidelines.
Bill status passed 3 of 5 stages cleared
Introduction
Jun 2025
Committee Review
Mar 2026
House Passage
Sep 2025
Senate Passage
Governor
Introduced Jun 24, 2025 Last action Mar 19, 2026
Floor votes

How they voted

This bill passed the House by voice vote (no roll call recorded).
Full legislative history

Actions timeline

Total actions
14
Key actions
4
Committee
6
Mar 19, 2026
Committee
re-referred to Committee on Communications and Technology
lower
Mar 19, 2026
Lower · Passed
motion to discharge committee approved
lower
Sep 18, 2025
Committee
referred to Committee on Regulatory Reform
lower
Sep 18, 2025
Lower · Passed
motion to discharge committee approved
lower
Sep 11, 2025
Lower · Passed
recommendation concurred in
lower
Sep 11, 2025
Lower · Passed
reported with recommendation for referral to Committee on Communications and Technology
lower
Jun 24, 2025
Committee
referred to Committee on Judiciary
lower
Jun 24, 2025
Introduced
introduced by Representative Rep. Sarah Lightner
lower
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Sarah Lightner
Sarah Lightner
RRepublican
MI
45