Ala. Code § 45-20-71.31: Purchasing Agent or Agents.

The board may create the office of purchase agent (or agents), fix the salary therefor, and prescribe the fund out of which the same shall be paid in whole or in part, and shall appoint such person or persons as they may deem proper to serve in such capacity. Such purchasing agent may be the clerk, the president, or any associate member of the board, or one or more of them. Such agent or agents, in the performance of his or their duties, shall be governed by such rules and regulations as the board may prescribe, and shall have only such authority and powers as the board may designate, and which may be revoked at any time or at the pleasure of the board, minutes of which shall be duly entered, and thereupon shall become binding. The president or board members shall not be entitled to extra compensation for such services, but the board shall fix compensation for such agent who is not the president or associate member of the board.