The bill introduces new requirements for insurers in Washington State regarding the use of wildfire risk scores in property insurance. It mandates that insurers provide detailed information about the wildfire risk score to applicants and insured individuals, including the current score, the range of possible scores, the creator of the score, the date it was generated, and key factors affecting the score. Insurers must deliver this information in writing within specified timeframes following coverage decisions and renewals. Additionally, policyholders have the right to appeal inaccurate wildfire risk scores, and insurers are required to respond to these appeals within set deadlines.

Furthermore, the bill establishes guidelines for insurers using wildfire risk models or catastrophe models in their underwriting and rating processes. Insurers must disclose the models used, their impact on rates, and any actuarial justifications for rating factors, including mitigation discounts. The bill emphasizes the importance of incorporating property-specific and community-level mitigation actions into these models, and if not included, insurers must offer discounts to policyholders who demonstrate such actions. Insurers are also required to provide accessible information on their websites regarding available discounts and the appeal process for wildfire risk scores.