Georgia Code Title 9. Civil Practice § 9-12-115

(a) If recognition of a foreign-country judgment is sought as an original matter, the issue of recognition shall be raised by filing an action seeking recognition of such foreign-country judgment.

(b) If recognition of a foreign-country judgment is sought in a pending action, the issue of recognition may be raised by counterclaim, cross-claim, or third-party claim.

(c) Chapter 11 of this title shall apply to any claim, counterclaim, cross-claim, or third-party claim for recognition of a foreign-country judgment.