A Practice Note explaining how a defendant in a Georgia superior or state court civil case may assert a claim against a nonparty that may be liable to the defendant for the plaintiff's claims. This Note explains the nature of third-party claims under O.C.G.A. § 9-11-14, identifies key considerations when deciding whether to plead third-party claims, and discusses how to draft, file, and serve a third-party complaint. This Note also addresses how to answer a third-party claim or reply to an answer, and how to plead additional claims that may arise between the original plaintiff and the third-party defendant.