The following standards shall apply to the making and use of rates pertaining to all the business of title insurance to which the provisions of this article are applicable:
No rate shall be held excessive unless (1) the rate is unreasonably high for the insurance or other services provided, and (2) a reasonable degree of competition does not exist in the particular phase of the business of title insurance to which the rate is applicable.
No rate shall be held to be inadequate unless (1) the rate is unreasonably low for the insurance or other services provided and (2) the continued use of the rate endangers the solvency of the person or entity using it, or unless (3) the rate is unreasonably low for the insurance or other services provided and the use of the rate by the person or entity using it has, or if continued will have, the effect of destroying competition or creating a monopoly. However, no rate or rate classification shall be held to be inadequate for the reason that a rate within a rating classification is less than the cost of the risk and expense elements assigned to smaller insurances within that classification, and the excess of the costs may be charged against larger insurances within the classification without rendering the rate or rate classification unfairly discriminatory.
Ca. Ins. Code § 12401.3