S.C. Code Regs. § 27-42
Unless exempted in a regulation supplemental hereto, a certificate or permit shall accompany the movement of regulated articles from any regulated area into or through any point outside thereof, except that, regulated articles originating outside of a regulated area moving through a regulated area to other nonregulated areas may be moved without a certificate or permit if the point of origin is clearly indicated on the shipping document accompanying the regulated articles and they are protected from infestation while within regulated areas, to the satisfaction of an inspector.
When certificates or permits are required, they shall be securely attached to the outside of the container in which the articles are moved except where the certificate or permit is attached to the shipping document and the regulated articles are adequately described in the shipping document or on the certificate or permit, the attachment of the certificate or permit to each of the containers is not required.
Certificates may be issued by an inspector if the regulated articles:
Permits may be issued by an inspector to allow the movement of noncertified regulated articles to locations outside of the regulated areas for particular handling, utilization, processing or for treatment in accordance with approved procedures, provided the inspector has determined that such movement will not result in the spread of witchweed.
S.C. Code Regs. 27-42