(1) The legislative council shall establish and maintain a centralized legislative accounting service under the supervision of the director of research of the council, which service shall maintain all accounting records, process all vouchers, and prepare all related documents for the legislative department of state government, including all offices and agencies thereof. The council may authorize any and all of such offices and agencies to maintain subsidiary accounting records and to prepare vouchers, but such records and vouchers shall conform to the system of accounting established by said accounting service, and each such office and agency shall make such reports to said service as may be necessary for it to maintain current and complete records for the legislative department.
(2) The provisions of this section shall not apply to the procurement and budgetary functions of offices and agencies in the legislative department.