Iowa Code Title V. Agriculture [Chs. 159-215A] § 167.3. “Disposing” defined

1. A person who receives from any other person the body of any dead animal for the purpose of obtaining the hide, skin, or grease from such animal, in any way whatsoever, or any part thereof, shall be deemed to be engaged in the business of disposing of the bodies of dead animals, and must be the operator or employee of a licensed disposal plant.

2. A disposal plant does not include an operation where the body of a dead animal is cremated, so long as the operation does not use the body of a dead animal for any other purpose described in subsection 1.