Title 19, Chapter 11, Section 122
Except as otherwise provided by this article, a responding tribunal
(1) Shall apply the procedural and substantive law, including the
rules on choice of law, generally applicable to similar
proceedings originating in Georgia and may exercise all powers and
provide all remedies available in those proceedings; and
(2) Shall determine the duty of support and the amount payable in
accordance with the law and support guidelines of Georgia.