(1) Only registered trees are permitted in the registered stool-bed.

(2) Registered stool-beds shall be located at least 50 feet from any nonregistered known or potential host plants in the field, under protected cultivation, or in the wild. The ground in a stool-bed and for a distance of ten feet surrounding it shall be kept clean cultivated, or in an approved, controlled ground cover.

(3) Stool-beds shall have originated from Generation 4 stock established under this program, or from virus-tested plants originating through the NRSP-5 or other departmentally approved virus-tested sources. If the tree is scion-rooted, its source shall have met the above requirements.