Delaware Code
Chapter 13. NURSERIES AND NURSERY STOCK
§ 1303. Inspection of nurseries and businesses, nursery stock certification.

(a) After receiving the nursery industry license application, the Department or its representatives shall examine or inspect all plants, plant material, or nursery stock located or grown on the business location or any other applicable location. Nurseries must maintain adequate weed control so a thorough inspection of the nursery stock can be made.
(b) The Department shall conduct the aforementioned inspection or examination yearly or as directed by the Secretary, at such time as it deems best, with or without notice. The Department reserves the right to conduct unannounced inspections as frequently as it deems necessary to insure compliance with all sections of this chapter.
(c) Upon the successful completion of an inspection, the Department shall issue a nursery stock certificate of inspection to any business licensed under § 1302 of this title. The nursery stock certificate shall state:

The nursery (or business premises) from which this shipment was made has been visually inspected and found to be in compliance with National Plant Board standards of pest freedom.
(d) The nursery stock certificate of inspection issued by the Department shall be valid for a period of 1 year, beginning January 1 and ending December 31 of the same year.