Ala. Code § 16-13-213

Any notes issued pursuant to this article may be refunded or renewed or extended for two additional periods of not more than 18 months from the date of maturity of such notes being refunded or renewed or extended, but otherwise pursuant to all of the terms and conditions of this article, whether or not the capital improvements with respect to which such outstanding notes were issued have been completed, if the state superintendent shall approve such refunding, renewal or extension.