Iowa Code § 335.26: Shooting ranges.

In approving the improvement of property acquired to establish, use, and maintain a new shooting range or in approving a substantial change to an existing shooting range pursuant to section 657.9, subsection 1, the county zoning commission, or if there is not a county zoning commission, the county board of supervisors, shall apply and enforce regulations and restrictions established for each zoning district adopted pursuant to this chapter but shall not otherwise require a person seeking approval to comply with any conditions relating to the establishment, use, or maintenance of the shooting range that are more stringent than those imposed by state law.