Michigan Senate Bill SB0387

Michigan 2025-2026 Regular Session

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

Caption

Civil procedure: statute of limitations; accrual of cause of action for groundwater contamination cases; revise. Amends 1961 PA 236 (MCL 600.101 - 600.9947) by adding sec. 5830.

Summary

Senate Bill 387 would add a new section to Michigan’s Revised Judicature Act establishing when a claim accrues in actions for damages or injury related to a hazardous substance. Under the bill, the clock for such a claim would begin when the plaintiff discovers the existence of the claim, or when the plaintiff should have discovered it through reasonable diligence. In practical terms, the bill creates a discovery-rule standard for these cases rather than tying accrual strictly to the date of the contamination or injury. The bill is aimed at hazardous substance and groundwater contamination litigation, where harm may not be immediately apparent. By defining accrual in this way, it would affect how courts determine timeliness for filing suit and could extend the period in which affected property owners, residents, or other injured parties may bring claims. The measure amends state civil procedure law by adding section 5830 to the Revised Judicature Act.

Impact

The bill would change Michigan law governing the accrual of civil claims involving hazardous substances by codifying a discovery-based rule in the Revised Judicature Act. This would likely influence statute-of-limitations analysis in contamination and environmental injury cases, especially where the injury is latent or discovered long after exposure. It would primarily affect plaintiffs, defendants alleged to be responsible for contamination, and courts applying timeliness rules in environmental tort litigation.

Sentiment

No committee transcripts or recorded votes were provided, so there is no direct evidence of debate or formal support/opposition in the available materials. Based on the text alone, the bill appears to be a targeted procedural change intended to help plaintiffs in hazardous substance cases by ensuring claims are not barred before the injury is reasonably discoverable. The overall tone of the measure is technical and remedial rather than broad or ideological.

Contention

The main point of contention likely concerns the balance between allowing injured parties a fair opportunity to sue and providing certainty and finality for potentially liable parties. Supporters would likely favor the discovery rule because hazardous substance injuries can be hidden for years, while opponents may argue it could lengthen exposure to litigation and make it harder for defendants to defend older claims. The bill’s focus on groundwater contamination and hazardous substance cases suggests the most affected stakeholders would be environmental plaintiffs, property owners, industry, insurers, and municipalities.