S.C. Code Ann. § 63-17-3100

A tribunal of this State exercising personal jurisdiction over a nonresident in a proceeding under this article, under other laws of this State relating to a support order, or recognizing a foreign support order may receive evidence from outside this State pursuant to Section 63-17-3360, communicate with a tribunal outside this State pursuant to Section 63-17-3370, and obtain discovery through a tribunal outside this State pursuant to Section 63-17-3380. In all other respects, Parts III through VI do not apply and the tribunal shall apply the procedural and substantive law of this State.