Except as otherwise provided in this article, a responding tribunal of this State shall: (1) apply the procedural and substantive law generally applicable to similar proceedings originating in this State and may exercise all powers and provide all remedies available in those proceedings; and (2) determine the duty of support and the amount payable in accordance with the law and support guidelines of this State.
Governing law determination
S.C. Code Ann. § 63-17-3230, under Title 63, Chapter 17.
S.C. Code Ann. § 63-17-3230