California Code, Insurance Code - INS § 12405

No title insurer, no controlled escrow company, and no underwritten title company shall make any rebate of any portion of the fee or charge shown by the schedule required by Section 12401.1. No title insurer, no controlled escrow company and no underwritten title company shall quote any fee or make any charge for a title policy to any person which is less than that currently available to others for the same type of title policy in a like amount covering property in the same county and involving the same factors as set forth in its then currently effective schedule of fees and charges. The amount by which any fee or charge is less than that called for by the then currently effective schedule of fees and charges of the title insurer is an unlawful rebate; provided, that nothing contained in this article shall prohibit bulk rates or special rates for customers of prescribed classes if such bulk or special rates are provided for in such schedule.