The commissioner shall notify the public of any application by an insurer for an interim rating plan. The public notice shall meet the requirements of Section 1861.06. The application shall be deemed approved 60 days after public notice unless (1) a consumer or his or her representative requests a hearing within 45 days of public notice and the commissioner grants the hearing, or determines not to grant the hearing and issues written findings in support of that decision, or (2) the commissioner on his or her own motion determines to hold a hearing. If the commissioner grants a request for a hearing or determines on his or her own motion to hold a hearing on the application for an interim rating plan, but does not approve or disapprove the proposed interim rating plan within the later of 30 days from the date the commissioner grants a request or determines to hold the hearing or January 1, 1991, the interim rating plan may be used until the time that the commissioner issues a decision.
If an interim rate or proposed interim rate is greater than the rate ultimately approved, the insurer shall refund to its applicable policyholders, in proportion to the amount of premium paid by each, the difference between the total amount earned and the amount to which the insurer is entitled under the rate ultimately approved, together with interest at the rate of 10 percent per year. In lieu of a refund, the insurer may provide a credit to the policyholder if the amount due is less than three dollars ($3).
Ca. Ins. Code § 1861.16