Ala. Code § 34-13-24

Each member of the board and member of any committee or subcommittee established by the board, after appointment and before entering upon his or her duties, shall make oath before some officer competent to administer oaths that he or she is legally qualified to become a member of the board, committee, or subcommittee under this chapter and that he or she will faithfully perform the duties of the office, a copy of which shall be filed in the office of the Secretary of State.