The department may issue an order to suspend or revoke the license of a commercial manure service as provided in chapter 17A , including an order to immediately suspend or revoke the license pursuant to section 17A.18A . The department may suspend or revoke the license of a commercial manure service for an applicable violation of this chapter . In addition, the department may suspend or revoke a commercial manure service’s license for any of the following: 1. Committing a fraudulent act, including but not limited to engaging in a deceptive act or practice, deliberately misrepresenting or omitting a material fact in the license application, or submitting a statement verifying that an employee may be substituted for certification without paying a fee as provided in section 459.400 . 2. Knowingly assisting a person in evading the provisions of this chapter . 3. Knowingly employing or executing a contract with a person who acts as a commercial manure service representative and who is not certified pursuant to section 459.315 . 2003 Acts, ch 163, §5, 23 ; 2007 Acts, ch 126, §81