The appointed members of the human service zone board serve a term of three years or until their successors have duly qualified. The members appointed to the initial human service zone board of a human service zone, however, must be appointed to staggered terms determined according to the plan approved pursuant to section 50-01.1-03. Each appointed member of the human service zone board shall qualify by taking the oath provided for civil officers. The oath must be filed with the county auditor of the county of residency. The human service zone shall compensate appointed members of the human service zone board at a rate established by the host county commission, upon consultation with the other county commissions in the human service zone, consistent with the rate of compensation for members of other appointed boards within the member counties and not to exceed the compensation and expense reimbursement of members of the legislative assembly. The human service zone shall also pay members for mileage and actual expenses incurred in attending meetings and in other performance of official duties of the members in the amounts provided by law for other state officers.