The bill amends the Natural Resources and Environmental Protection Act of 1994, introducing new definitions and requirements related to environmental assessments and cleanup criteria. Key insertions include definitions for "Act of God," "Agricultural property," and "All appropriate inquiry," aligning them with federal standards. The bill also introduces terms such as "Due care plan" and "Interim response activity," which outline necessary actions for compliance with environmental regulations. Additionally, it updates existing definitions, such as "Hazardous substance," and emphasizes the importance of conducting baseline environmental assessments and due care plans. The bill aims to strengthen the regulatory framework for managing hazardous substances and protecting public health and the environment in Michigan.

Further amendments clarify the responsibilities of property owners and operators regarding hazardous substance releases, including the requirement to report facility information and submit response activity plans within specified timelines. The bill mandates regular reporting on hazardous substance releases and establishes a framework for appeals related to plan approvals. It also introduces a response activity review panel to address disputes and outlines the conditions under which liability may be avoided. Overall, these changes enhance accountability, transparency, and efficiency in managing hazardous substances, ensuring compliance with environmental safety standards while protecting public health.