Iowa Code
Chapter 200A - BULK DRY ANIMAL NUTRIENT PRODUCTS
Section 200A.14 - Exchange between producers.

200A.14 Exchange between producers.
Nothing in this chapter shall be construed to restrict or prohibit any of the following:
1. The distribution of a bulk product to importers, manufacturers, or manipulators who mix bulk dry animal nutrient products for distribution.
2. The shipment of a bulk product to a person licensed as a distributor pursuant to section 200A.5 who has registered the bulk product as provided in section 200A.6.
98 Acts, ch 1145, ยง14