Insurance: automobile; manuals of rules; provide requirements for. Amends secs. 2021, 2106, 2108, 2112, 2458 & 2652 of 1956 PA 218 (MCL 500.2021 et seq.).

This bill amends Michigan's insurance code to clarify how insurers must handle rate filings and information requests for automobile and home insurance policies. It requires insurers to provide specific details about how their rates are calculated upon request and mandates that rate manuals include clear explanations of rating rules, discounts, and premium adjustments. The legislation also establishes a 90-day waiting period for new automobile insurance rate plans to take effect, with limited exceptions, and reinforces protections against redlining by prohibiting insurers from denying coverage based on a customer's location. Additionally, the bill ensures that information submitted to the state regarding insurance rates is generally public, unless an insurer successfully proves it constitutes a trade secret.