Ala. Code § 27-14-20: Renewal or Extension of Policies.

Any insurance policy terminating by its term at a specified expiration date and not otherwise renewable may be renewed or extended at the option of the insurer, and upon a currently authorized policy form and at the premium rate then required therefor for a specific additional period, or periods, by certificate or by endorsement of the policy and without requiring the issuance of a new policy.