At or before the expiration of the extension or renewal, or at the expiration of such further extensions or renewals as may be specifically granted in writing by the Insurance Commissioner, a policy of insurance must be issued covering the insured, the risks bound by the covering note, and commencing with the effective date of the original covering note at least the period of time included in all covering notes.
Cal. Code Regs. Tit. 10, § 2274.3