The interstate movement of any regulated article from a quarantined area 1 is prohibited except when:

(a) The regulated article is moved by the United States Department of Agriculture:

(1) For an experimental or scientific purpose;

(2) Pursuant to a Departmental permit issued by the Administrator for the regulated article;

(3) Under conditions specified on the Departmental permit and found by the Administrator to be adequate to prevent the spread of plum pox; and

(4) With a tag or label bearing the number of the Departmental permit issued for the regulated article attached to the outside of the container of the regulated article or attached to the regulated article itself if not in a container; or

(b) The regulated article originated outside the quarantined area and:

(1) Is moved in an enclosed vehicle or is completely enclosed by a covering (such as canvas, plastic, or other closely woven cloth) adequate to prevent access by aphids or other transmission agents of plum pox while in the quarantined area;

(2) The regulated article's point of origin is indicated on the waybill; and

(3) The regulated article must not be uncovered, unpacked, or unloaded while moving through the quarantined area.