S.C. Code Ann. § 46-23-70
The Commissioner is authorized to cooperate with the federal government, state agencies, farmers' organizations, other groups, and individuals in the conduction of those operations necessary to accomplish the purposes of this chapter. The Commissioner is further authorized to cooperate with the governments of other states in carrying out necessary surveys, control operations, or quarantine measures, deemed necessary to eradicate, suppress, control, or retard the spread of noxious weeds, whenever the Commissioner determines that such cooperation with the officials in other states is necessary or desirable to protect the interests of this State.