California Code, Insurance Code - INS § 12401.7

No title insurer, underwritten title company or controlled escrow company shall use any rate in the business of title insurance prior to its effective date nor prior to the filing with respect to such rate having been publicly displayed and made readily available to the public for a period of no less than 30 days in each office of the title insurer, underwritten title company, or controlled escrow company in the county to which such rate applies, and no rate increase shall apply to title policies or services which have been contracted for prior to such effective date.