Iowa Code Title I. State Sovereignty and Management [Chs. 1-38D] § 12.6. Report to and account with director of the department of administrative services

Once in each week the treasurer shall certify to the director of the department of administrative services the number, date, amount, and payee of each warrant taken up by the treasurer, with the date when taken up, and the amount of interest allowed; and on the first Monday of January, and the first day of April, July, and October, annually, the treasurer is directed to account with the director of the department of administrative services and deposit with the department of administrative services all such warrants received at the treasury, and take the director's receipt therefor.