Each appointed member of the board is entitled to receive compensation in an amount determined by the board, not to exceed one hundred dollars per day, for actual services rendered in the performance of the member’s duties under this chapter, and each member and employee of the board is entitled to receive traveling expenses incurred in the performance of official duties. Allowances for traveling expenses must be as provided by law for state officials    and employees. The compensation and expense must be paid out of the state plumbing board fund. The compensation provided for in this section may not be paid to any member of the board who receives salary or other compensation as a regular employee of the state or any of its political subdivisions or any institution or industry operated by the state.