904A.6  Salaries and expenses.
  Each member, except the chairperson and the vice chairperson, of the board shall be paid per diem as determined by the general assembly. The chairperson and vice chairperson of the board shall be paid a salary as determined by the general assembly. Each member of the board and all employees are entitled to receive, in addition to their per diem or salary, their necessary maintenance and travel expenses while engaged in official business.
86 Acts, ch 1245, §1516; 89 Acts, ch 282, §7; 2000 Acts, ch 1177, §3, 5
See also §7E.6