Environmental protection: sewage; onsite wastewater treatment systems; regulate, and provide for assessments and evaluations. Amends sec. 12752 of 1978 PA 368 (MCL 333.12752) & adds pt. 128.

This bill updates Michigan's Public Health Code to strengthen the regulation of onsite wastewater treatment systems, such as septic tanks, for properties not connected to public sewer lines. It establishes new definitions for various waste treatment methods and grants the Department of Environment, Great Lakes, and Energy, along with local health departments, the authority to inspect, evaluate, and enforce compliance with these systems. The legislation also clarifies that connecting to a public sewer system is a public interest goal and outlines specific enforcement tools, including violation notices and warrant procedures, to ensure these systems do not threaten public health or water quality.