Iowa Admin. Code r. 721-22.7
If the examiners determine that a consultant is necessary to determine whether a system meets the requirements of Iowa law or whether a change to a voting system is de minimis or a modification, the examiners shall notify the vendor of the decision. The vendor may suggest the names of reliable independent test authorities to the examiners and may decline to submit the equipment to the examination of an individual for good reason.
A consultant may be employed if no other state has certified the equipment for use. The examiners may require a consultant if the equipment has been modified following certification by other states, or if the examiners believe it to be necessary.
If a test authority has been determined to be necessary by the examiners and a suitable consultant cannot be agreed upon by the examiners and the vendor, the equipment shall not be approved for use.
Iowa Admin. Code r. 721-22.7