S.C. Code Ann. § 8-13-1304: Committees receiving and spending funds to influence elections required to file statement of organization.

(A) A committee, except an out-of-state committee, which receives or expends more than five hundred dollars in the aggregate during an election cycle to influence the outcome of an elective office must file a statement of organization with the State Ethics Commission no later than five days after receiving the contribution or making the expenditure. An out-of-state committee which expends more than five hundred dollars in the aggregate during an election cycle to influence the outcome of an elective office must file a statement of organization with the State Ethics Commission no later than five days after making the expenditure.

(B) A ballot measure committee, except an out-of-state ballot measure committee, which receives or expends more than two thousand five hundred dollars in the aggregate during an election cycle to influence the outcome of a ballot measure must file a statement of organization with the State Ethics Commission no later than five days after receiving the contribution or making the expenditure. An out-of-state ballot measure committee which expends more than two thousand five hundred dollars in the aggregate during an election cycle to influence the outcome of a ballot measure must file a statement of organization with the State Ethics Commission no later than five days after making the expenditure.