Iowa Code § 479B.2: Definitions.

As used in this chapter, unless the context appears otherwise:

1. “Commission” means the utilities commission.

2. “Hazardous liquid” means crude oil, refined petroleum products, liquefied petroleum gases, anhydrous ammonia, liquid fertilizers, liquefied carbon dioxide, alcohols, and coal slurries.

3. “Pipeline” means an interstate pipe or pipeline and necessary appurtenances used for the transportation or transmission of hazardous liquids.

4. “Pipeline company” means a person engaged in or organized for the purpose of owning, operating, or controlling pipelines for the transportation or transmission of any hazardous liquid or underground storage facilities for the underground storage of any hazardous liquid.

5. “Underground storage” means storage of hazardous liquid in a subsurface stratum or formation of the earth.