MI HB4848

Modifies distribution of Michigan transportation funds to county road commissions, effective September 30, 2010, reducing the amount that can be spent from county primary road funds on county local roads from 50% to 30% annually.

Allows an additional 20% of county primary road funds to be expended on county local roads in cases of emergency or with county road commission determination, with potential conditions attached.

Maintains requirement that at least 90% of state revenue returned to county road commissions annually must be expended on preservation of highways, roads, streets, and bridges, excluding certain deductible amounts.

Requires county road commissions to spend at least 90% of federal revenue annually on preservation purposes, with flexibility for 3-year averaging periods and exceptions for federal compliance.

Establishes a 10% annual cap on administrative expenses for county road commissions, with oversight and performance audits conducted by the Department of Treasury.