Cal. Ins. Code § 12384
If the aggregate amount set aside by a title insurer in its unearned premium reserve should at any time be less than the amount required to be maintained in such reserve, and the deficiency shall not be promptly cured, such title insurer shall forthwith give written notice thereof to the commissioner. Any such title insurer shall not thereafter issue any further policies or contracts of title insurance or reinsurance until the deficiency shall have been eliminated and until it shall have received written approval from the commissioner authorizing it to again issue such policies and contracts of title insurance and reinsurance. For the purpose of determining the aggregate amount set aside by a title insurer in its unearned premium reserve, any portion of such reserve which shall have been invested shall be valued at the purchase price or the fair market value of such investment on the date that such investment was made.
Ca. Ins. Code § 12384