Iowa Code § 482.15: Penalties.

A person who violates this chapter or a rule issued under this chapter is guilty of a simple misdemeanor punishable as a scheduled violation under section 805.8B, subsection 3, paragraph “e”. However, the scheduled fine specified in section 805.8B, subsection 3, paragraph “e”, does not apply to a violation of this chapter or a rule for which another scheduled fine is specified in section 805.8B, subsection 3.