Iowa Code § 177A.8
It shall be unlawful for any person to bring or cause to be brought into this state any plant or plant product listed in the rules, unless there be plainly and legibly marked thereon or affixed thereto, or on or to the carrier, or the bundle, package, or container, in a conspicuous place, a statement or tag or device showing the names and addresses of the consignors or shippers and the consignees or persons to whom shipped, the general nature and quantity of the contents, and the name of the locality where grown, together with a certificate of inspection of the proper official of the state, territory, district, or country from which it was brought or shipped, showing that such plant or plant product was found or believed to be free from dangerously injurious insect pests and diseases, and giving any other information required by the state entomologist.
Iowa Code § 177A.8
Referred to in §177A.9, 177A.10, 177A.19