Iowa Code § 455B.486: Facility siting.

The commission shall adopt rules establishing criteria for the identification of sites which are suitable for the operation of low-level radioactive waste disposal facilities. The department shall apply these criteria, once adopted, to identify and recommend to the commission sites suitable for locating facilities for the disposal of low-level radioactive waste. The commission shall accept or reject the recommendation of the department. If the commission rejects the recommendation of the department, the commission shall state its reasons for rejecting the recommendation.