2009 Iowa Code
Title 13 - Commerce
Subtitle 1 - Insurance and Related Regulation
CHAPTER 516D - RENTAL OF MOTOR VEHICLES
516D.5 - RECOVERY FOR DAMAGE OR LOSS.

        516D.5  RECOVERY FOR DAMAGE OR LOSS.
         A claim against an authorized driver resulting from damage to a
      rental vehicle, loss due to theft of a rental vehicle, or damages
      resulting from the loss of use of a rental vehicle, must be
      reasonably and rationally related to the actual loss incurred.  A
      rental company shall mitigate damages where possible and shall not
      assert or collect any claim for physical damage which exceeds the
      actual cost of the repair, including all discounts or price
      reductions.  Administrative fees shall be limited to the reasonable
      administrative costs associated with processing the damage claim.  A
      claim made for loss of use shall not exceed the daily rental rate
      stated in the customer's contract, excluding optional charges,
      multiplied by the total of the estimated time for replacement and the
      estimated time for repair, divided by eight.  

         91 Acts, ch 204, §5