Michigan Senate Bill SB0386

Michigan 2025-2026 Regular Session

• Introduced: 6/10/25
• Refer: 6/10/25

Caption

Civil procedure: civil actions; action for medical monitoring for individuals exposed to a proven toxic substance; provide for. Amends secs. 20126 & 20140 of 1994 PA 451 (MCL 324.20126 & 324.20140) & adds sec. 20136.

Summary

SB 386 would create a new statutory cause of action in Michigan for “medical monitoring” for individuals exposed to hazardous substances who do not yet have a present injury or disease. To recover, a plaintiff would have to prove exposure above general-population levels, an increased risk of a serious disease caused by that exposure, the medical necessity of periodic monitoring, the availability and reasonableness of the monitoring, and that the responsible party employed at least five full-time employees at the time of the release. The bill also allows claims based on prenatal exposure through a biological parent and permits class actions. The bill specifies that any medical-monitoring award must be paid into a court-supervised monitoring program run by appropriate health professionals, and it makes that remedy exclusive for people seeking monitoring without a present injury. It also authorizes attorney fees and litigation costs for successful plaintiffs, while preserving other civil, injunctive, and latent-disease claims for people who later develop an actual illness. The bill expressly states that it does not expand workers’ compensation rights. In addition to adding the new section, SB 386 amends the state’s environmental liability provisions to make clear that the new medical-monitoring remedy is separate from the existing hazardous-substance liability framework and is not subject to the same limitations period. It also revises the limitations section so that the general statute of limitations in Part 201 does not apply to medical-monitoring actions. The bill leaves in place the existing rules governing liable parties, exemptions, no-further-action reports, and other cleanup-related defenses under the Natural Resources and Environmental Protection Act. The overall sentiment reflected in the bill materials is supportive of expanding access to remedies for people exposed to toxic substances, especially where harm may be latent and not yet diagnosable. Because there are no committee transcripts or recorded votes provided, there is no documented floor or committee debate to show formal opposition or support. The structure of the bill suggests a policy goal of giving exposed individuals an earlier legal tool for surveillance and early detection rather than waiting for a disease to manifest. The main points of contention likely concern the scope of liability and litigation exposure for businesses and other parties responsible for hazardous releases. The bill limits claims to cases involving a serious disease risk and a defendant with at least five full-time employees, but it still creates a new category of potentially costly claims, including class actions and attorney-fee awards. Another likely issue is the interaction between this new remedy and existing environmental cleanup law, particularly whether medical-monitoring claims could increase litigation over contaminated sites even when cleanup or no-further-action processes are already in place.

Impact

SB 386 would amend Michigan’s Natural Resources and Environmental Protection Act by adding a new section that creates a standalone medical-monitoring cause of action for certain hazardous-substance exposures and by clarifying that those claims are not governed by the ordinary Part 201 limitations period. It would also modify the liability section to state that the new remedy is separate from existing environmental liability rules, while preserving the current framework for cleanup responsibility, exemptions, and defenses under Part 201. The bill would affect potentially responsible parties, employers with five or more employees at the time of release, exposed individuals without present injury, courts, and court-supervised medical monitoring programs.

Sentiment

The bill appears to be driven by a pro-remedy, pro-public-health approach that favors giving exposed individuals a legal path to early detection and monitoring before a disease becomes manifest. No committee testimony or vote record is provided, so there is no direct evidence of formal support or opposition from legislators in the available materials. Based on the text alone, the bill’s tone is remedial and protective of exposed residents, while also trying to define limits on who may sue and under what conditions.

Contention

The most likely contention is over whether Michigan should recognize a new medical-monitoring claim for people who have not yet suffered an actual injury, because that expands potential liability and litigation costs for parties tied to hazardous releases. Businesses and other liable parties may object to class actions, attorney-fee shifting, and the possibility of claims based on increased risk rather than present disease. Environmental and public-health advocates would likely support the bill as a way to fund early screening and reduce the harm from latent toxic exposures. There may also be debate over the bill’s threshold requirements, especially the five-employee cutoff and the requirement that monitoring be medically necessary and cost-reasonable.