12C.6  Interest rate — committee — notice.
  1.  Public deposits shall be deposited with reasonable promptness in a depository legally designated as depository for the funds.
  2.  a.  A committee composed of the superintendent of banking, the superintendent of credit unions, the auditor of state or a designee, and the treasurer of state shall meet on or about the first of each month or at other times as the committee may prescribe and by majority action shall establish a minimum rate to be earned on state funds placed in time deposits.
  b.  State funds invested in depository time certificates of deposit shall draw interest at not less than the rate established, effective on the date of investment.
  c.  An interest rate established by the committee under this section shall be in effect commencing on the eighth calendar day following the day the rate is established and until a different rate is established and takes effect.
  d.  The committee shall give advisory notice of an interest rate established under this section. This notice may be given by publication in one or more newspapers, by publication in the Iowa administrative bulletin, by ordinary mail to persons directly affected, by any other method determined by the committee, or by a combination of these. In all cases, the notice shall be published in the Iowa administrative bulletin.
  e.  The notice shall contain the following words:
  The rate of interest has been determined by a committee of the state of Iowa to be the minimum interest rate that shall be paid on public funds deposited in approved financial institutions. To be eligible to accept deposits of public funds of the state of Iowa, a financial institution shall demonstrate a commitment to serve the needs of the local community in which it is chartered to do business. These needs include credit services as well as deposit services. All such financial institutions are required to provide the committee with a written description of their commitment to provide credit services in the community. This statement is available for examination by citizens.
  f.  The notice shall also provide the name and address of a state official to whom inquiries can be sent. Actions of the committee under this section and section 12C.6A are exempt from chapter 17A.
  3.  Public funds invested in depositories’ time certificates of deposit by a public body or officer other than the treasurer of state shall draw interest at rates to be determined by the public body or officer and the depository, which rates shall not be less than the minimum rate set under this section for state funds.
[C24, 27, §140, 4319, 5548, 5651, 7404; C31, 35, §7420-d6; C39, §7420.06; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, S81, §453.6; 81 Acts, ch 39, §2, ch 149, §2]
84 Acts, ch 1230, §10
C93, §12C.6
96 Acts, ch 1021, §1; 2008 Acts, ch 1032, §201

See §74A.6 for interest rates on public obligations