According to US import regulations a FREE permit to import seeds must be obtained by the importer.

You can obtain your free downloadable Seed import request form here.

http://www.aphis.usda.gov/plant_health/permits/downloads/forms/ppqform587.pdf

Please do not order from us if you have not obtained your permit.

NOte that the seeds you see listedDO NOT need any other permit other than the one above.
They are not on the endangered, invasive, parasitic lists that require other permits.