Iowa Code § 192.113: Penalties.

1. a. A person shall not act as a milk hauler unless the person holds a milk hauler permit required pursuant to section 192.111. A person shall not solicit another person to act as a milk hauler or procure the services of a person to act as a milk hauler unless the person solicited or from whom the services are procured holds a milk hauler permit.

b. A person shall not act as a milk grader unless the person holds a milk grader permit required pursuant to section 192.111. A person shall not solicit another person to act as a milk grader or procure the services of a person to act as a milk grader unless the person solicited or from whom the services are procured holds a milk grader permit.

c. A person shall not operate a bulk milk tanker unless the bulk milk tanker operates pursuant to a bulk milk tanker permit required pursuant to section 192.111. A person shall not solicit another person to operate a bulk milk tanker or procure the services of a person to operate a bulk milk tanker unless the bulk milk tanker operates pursuant to a bulk milk tanker permit.

2. A person who violates this section is subject to a civil penalty of at least one hundred dollars but not more than one thousand dollars for each violation. Each day that a violation continues shall constitute a new violation. However, a person shall not be subject to a civil penalty of more than ten thousand dollars for a continuing violation. Civil penalties shall be deposited in the general fund of the state.