What certification forms are required for unprocessed plants from the U.S. or affiliated islands?

The correct answer regarding the certification forms required for unprocessed plants from the U.S. or affiliated islands includes the specific forms that serve as documentation for ensuring that the plants meet phytosanitary standards. In this case, Form 577 is a crucial document used for the certification of exported plants and plant products, which assures receiving countries that the products are free from pests and diseases.

Form 578, on the other hand, is typically associated with the importation of plants into the U.S. or other related records, ensuring compliance with regulatory standards as well.

The combination of Forms 577 and 578 specifically allows for compliance with international phytosanitary regulations when exporting unprocessed plants. Thus, these forms are essential for making sure that the exports are legitimate and meet the safety standards required by other countries for importing plants.