Ala. Code § 16-24C-11

No public K-12 teacher shall be permitted to terminate his or her employment within 30 calendar days before the first day of the next school term for students, unless the termination is mutually agreed upon. A public K-12 teacher may terminate his or her employment at any other time by giving 30 days’ written notice to the employing board of education. Any public K-12 teacher terminating his or her employment in violation of this section is guilty of unprofessional conduct, and the State Superintendent of Education may revoke or suspend the certificate of the violating teacher.