The state auditor shall prepare and publish, by and with the approval of the Governor, complete forms applicable to the business transacted in each of the several boards, offices, institutions, departments, and commissions of the executive department of the state government, the same to be as uniform as the business respectively transacted therein shall permit; provided, however, that the Department of Administrative Services shall in all cases require each and every one of the several boards, offices, institutions, departments, and commissions of the executive department of state government to use consecutively numbered requisitions, purchase orders, and field purchase orders, which documents shall be retained and filed in numerical sequence to provide a procurement audit trail. It shall be the duty of each of the boards, offices, institutions, departments, and commissions, as directed by the Governor, to employ such forms and none other in transacting and recording their several financial transactions of every nature.