Environmental protection: other; citations to the motor vehicle sales finance act in the natural resources and environmental protection act; revise. Amends sec. 20101 of 1994 PA 451 (MCL 324.20101). TIE BAR WITH: SB 0739'25

SB 743 amends Michigan's Natural Resources and Environmental Protection Act to update definitions related to environmental cleanup standards, specifically revising how "background concentration" of hazardous substances is determined. The bill clarifies that natural pollutant levels (existing without human contamination) can be verified using updated Michigan Administrative Code tables, the 2005 Michigan background soil survey, or department-approved studies. This change directly affects property owners, developers, and environmental agencies assessing contaminated sites, as it provides clearer criteria for determining when cleanup is required. The revised definitions streamline baseline environmental assessments and cleanup decisions under Michigan's brownfield redevelopment program. The bill is currently in committee and has not yet been voted on.