Each person whose name appears on a label as handling agricultural, flower, or vegetable seed subject to this subchapter shall keep for a period of two years complete records of each lot of agricultural, flower, and vegetable seed handled, and keep for one year a file sample of each lot of seed after final disposition of the lot. All records and samples pertaining to the shipment or shipments involved shall be accessible for inspection by the Secretary during customary business hours under section 643 of this title. (Added 1989, No. 85, § 2; amended 2003, No. 42, § 2, eff. May 27, 2003.)