Iowa Code Title V. Agriculture [Chs. 159-215A] § 200.4. License--fee and expiration

1. Any person who manufactures, mixes, blends, mixes to customer's order, offers for sale, sells, or distributes any fertilizer or soil conditioner in this state must first obtain a license issued by the secretary and pay a twenty dollar license fee for each place of manufacture or distribution from which fertilizer or soil conditioner products are sold or distributed in this state. The license shall expire on July 1 of the even-numbered year following the date the license is issued. A license may be renewed for a two-year period as provided by the department.

2. The licensee shall at all times produce an intimate and uniform mixture of fertilizers or soil conditioners. When two or more fertilizer materials are delivered in the same load, they shall be thoroughly and uniformly mixed unless they are in separate compartments.