I received today a January 2002 memo from the United States Department of Agriculture / APHIS outlining a plan to more strictly enforce the requirement for phytosanitary certification of nursery stock, plants, roots, bulbs and seeds imported to the US.
The letter indicates this program "does not entail new regulatory requirements. Rather, its goal is to enforce, beginning on January 22, 2002, an existing phytosanitary certificate requirement."
Except for certain seeds and greenhouse-grown plant material from Canada, "All other nursery stock, plants, roots, bulbs, seeds and other plant products must be accompanied by a phytosanitary certificate issued by the plant health officials where the product originated in order to be considered for entry into the United States.
Additonal information can be found on the USDA website,
www.aphis.usda.gov. *Click on "Plant Health" then on "

irectories and General Information"