Drains: districts; revision of drainage district boundaries; modify procedure. Amends secs. 135 & 197 of 1956 PA 40 (MCL 280.135 & 280.197).

HB 4831 amends Michigan's Drain Code to update procedures for changing drainage district boundaries, affecting counties, landowners, and municipalities liable for drainage assessments. It requires petitions signed by landowners (or municipalities) to add/remove counties from a district, followed by a drainage board meeting where boundaries are reviewed and cost-sharing between counties is determined. The bill specifies notice requirements for landowners and municipalities, and outlines how revised boundaries must be documented and filed with county officials. This procedural update streamlines boundary adjustments for public health, convenience, or welfare needs without altering drainage funding or service obligations.