Alabama Code Title 10A. Alabama Business and Nonprofit Entities Code § 10A-2A-8.43

(a) An officer may resign at any time by delivering a written notice to the board of directors, its chair, the appointing officer, the secretary, or the corporation. A resignation is effective as provided in Section 10A-2A-1.41(i) unless the notice provides for a delayed effectiveness, including effectiveness determined upon a future event or events. If effectiveness of a resignation is stated to be delayed and the board of directors or the appointing officer accepts the delay, the board of directors or the appointing officer may fill the pending vacancy before the delayed effectiveness but the new officer may not take office until the vacancy occurs.

(b) An officer may be removed at any time with or without cause by (i) the board of directors;  (ii) the appointing officer, unless the certificate of incorporation, bylaws, or the board of directors provide otherwise;  or (iii) any other officer if authorized by the certificate of incorporation, bylaws, or the board of directors.

(c) In this section, “appointing officer” means the officer (including any successor to that officer) who appointed the officer resigning or being removed.