MI HB4638

Prohibits automobile insurance risks from being grouped by territory, eliminating territorial rating as a classification factor.

Establishes specific allowed rating factors for automobile insurance including driver age/experience, driver primacy, mileage, vehicle characteristics, commuting distance, household drivers/vehicles, and insurance amount.

Requires insurers to establish a secondary merit rating plan for automobile insurance (excluding comprehensive coverage) based on at-fault accidents and traffic violations, with surcharges limited to the duration the Secretary of State carries points on driving records.

Prohibits automobile insurance rates from being based on sex or marital status; permits senior citizen discount plans for drivers age 65+ who drive under 3,000 miles annually.

Establishes allowable rating factors for home insurance based on coverage type, safety devices, structural condition, fire protection class, building construction, loss experience, smoking use, fire hydrant distance, and law enforcement availability.