California Insurance Code Section 1861.05
Approvalof Insurance Rates. (a) No rate shall be approved or remain in effect which is excessive, inadequate, unfairly discriminatory or otherwise in violation of this chapter. In considering whether a rate is excessive, inadequate or unfairly discriminatory, no consideration shall be given to the degree of competition and the commissioner shall consider whether the rate mathematically reflects the insurance company’s investment income.
(b) Every insurer which desires to change any rate shall file a complete rate application with the commissioner. A complete rate application shall include all data referred to in Sections 1857.7, 1857.9, 1857.15, and 1864 and such other information as the commissioner may require. The applicant shall have the burden of proving that the requested rate change is justified and meets the requirements of this article.
(c) The commissioner shall notify the public of any application by an insurer for a rate change. The application shall be deemed approved sixty days after public notice unless (1) a consumer or his or her representative requests a hearing within forty-five 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, or(3) the proposed rate adjustment exceeds 7% of the then applicable rate for personal lines or 15% for commercial lines, in which case the commissioner must hold a hearing upon a timely request. In any event, a rate change application shall be deemed approved 180 days after the rate application is received by the commissioner (A) unless that application has been disapproved by a final order of the commissioner subsequent to a hearing, or (B) extraordinary circumstances exist. For purposes of this section, "received" means the date delivered to the department.
(d) For purposes of this section, extraordinary circumstances include the following:
(1) Rate change application hearings commenced during the 180-day period provided by subdivision (c). If a hearing is commenced during the 180-day period, the rate change application shall be deemed approved upon expiration of the 180-day period or 60 days after the close of the record of the hearing, whichever is later, unless disapproved prior to that date.
(2) Rate change applications that are not approved or disapproved within the 180-day period provided by subdivision (c) as a result of a judicial proceeding directly involving the application and initiated by the applicant or an intervenor. During the pendency of the judicial proceedings, the 180-day period is tolled, except that in no event shall the commissioner have less than 30 days after conclusion of the judicial proceedings to approve or disapprove the application. Notwithstanding any other provision of law, nothing shall preclude the commissioner from disapproving an application without a hearing if a stay is in effect barring the commissioner from holding a hearing within the 180-day period.
(3) The hearing has been continued pursuant to Section 11524 of the Government Code. The 180-day period provided by subdivision (c) shall be tolled during any period in which a hearing is continued pursuant to Section 11524 of the Government Code. A continuance pursuant to Section 11524 of the Government Code shall be decided on a case by case basis. If the hearing is commenced or continued during the 180-day period, the rate change application shall be deemed approved upon the expiration of the 180-day period or 100 days after the case is submitted, whichever is later, unless disapproved prior to that date.