Cal. Ins. Code § 1594
Whenever it appears to the commissioner that the trusteed surplus in the United States of an alien insurer is less than an amount equal to the minimum amount of the capital paid in or available cash assets required by this code for the classes of insurance transacted by such alien insurer in the United States, he shall determine the amount of such deficiency and make requisition upon such alien insurer in writing, addressed to its attorney in the United States or to its United States manager, to repair such deficiency within such time, not less than 60 nor more than 90 days from the service of such requisition, as he may therein designate. The commissioner may revoke or suspend the certificate of authority of such alien insurer or order it to cease issuing new policies in the United States, while such deficiency exists.
If at the expiration of the period designated in such requisition such alien insurer has failed to repair such deficiency, the commissioner may proceed against it under the provisions of Article 14, Chapter 1, Part 2, Division 1 as against an insurer whose condition is such that its further transaction of business will be hazardous to its policyholders, or creditors, or to the public.
Ca. Ins. Code § 1594