Certified seed potatoes
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
Certified seed potatoes means and includes all potatoes officially certified and tagged, marked, or otherwise appropriately identified, under the supervision of the official seed potato certifying agency of the State in which the potatoes are grown, or other seed certification agencies which the Secretary may designate.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.