MI HB4048

Amends Section 2111 of the 1956 Insurance Code to establish uniform classification and territorial base rate requirements for automobile and home insurance throughout Michigan.

Automobile insurance classifications must be based on specific factors including driver age/experience, driver primacy, mileage, vehicle characteristics, commuting distance, number of household drivers/vehicles, and insurance amount, applied uniformly statewide.

Personal protection insurance may additionally use earned income, number of dependents, coordination of benefits, and safety belt use; collision and comprehensive coverage may use repair costs, vehicle make/model, damageability, and theft prevention devices.

Prohibits using sex or marital status as rating factors; requires merit rating plans based on at-fault accidents and traffic violations, with surcharges limited to the duration points remain on the driver's motor vehicle record.

Territorial base rates are mandatory with limits: no more than 20 different rates per coverage, lowest rate cannot be less than 45% of highest rate, and adjacent territories cannot vary by less than 90%; insurers may seek exemptions from the commissioner for financial hardship with specific constraints.