Iowa Code § 166.13: Revocation of permit.

Such a permit shall be automatically revoked:

1. In case of a dealer, by the dealer’s failure to execute and file with the department a new and approved bond when required by law, or by the dealer’s failure to obtain a separate permit and to file a separate bond in the amount of five thousand dollars for each place of business.

2. In case of a manufacturer, by the manufacturer’s ceasing to be the holder of a United States department of agriculture license for the manufacture and sale of biological products.

3. In case of either a manufacturer or dealer, for discrimination in the price at which such biological products are sold, and such permit shall not in such case be renewed for one year.