The Secretary may prohibit or restrict the importation, entry, exportation, or movement in interstate commerce of any plant, plant product, biological control organism, noxious weed, article, or means of conveyance, if the Secretary determines that the prohibition or restriction is necessary to prevent the introduction into the United States or the dissemination of a plant pest or noxious weed within the United States.
The Secretary shall conduct a study of the role for and application of systems approaches designed to guard against the introduction of plant pathogens into the United States associated with proposals to import plants or plant products into the United States.
Not later than 2 years after June 20, 2000, the Secretary shall submit a report on the results of the study conducted under this section to the Committee on Agriculture, Nutrition, and Forestry of the Senate and the Committee on Agriculture of the House of Representatives.
In the case of noxious weeds, the Secretary may publish, by regulation, a list of noxious weeds that are prohibited or restricted from entering the United States or that are subject to restrictions on interstate movement within the United States.
In the case of biological control organisms, the Secretary may publish, by regulation, a list of organisms whose movement in interstate commerce is not prohibited or restricted. Any listing may take into account distinctions between organisms such as indigenous, nonindigenous, newly introduced, or commercially raised.
Any person may petition the Secretary to add a biological control organism to, or remove a biological control organism from, the regulations issued by the Secretary under this subsection.