Iowa Code Title I. State Sovereignty and Management [Chs. 1-38D] § 12.3. Record and payment of warrants

The treasurer of state shall keep a record of warrants issued as certified by the director of the department of administrative services, and receive in payment of public dues the warrants so issued in conformity with law, and redeem the same, if there be money in the treasury not otherwise appropriated, and on receiving any such warrant shall cause the person presenting it to endorse it, and shall indicate on its face in a suitable manner that it has been redeemed, and keep a record of warrants redeemed showing the name of the person to whom paid, date of payment, and amount of interest paid.