A commission shall elect such officers as it deems necessary for the conduct of its affairs, including a secretary and treasurer, who need not be members of the commission, and shall be compensated as determined by the commission. Each member of a commission, other than the chairman, may be paid a per diem compensation not to exceed $44.00 for each meeting which he attends and additional compensation for such other services as are specifically authorized by the commission, and may be reimbursed for his actual expenses. No commission member, other than the chairman, shall receive compensation in excess of $2,400.00 per year.