O.C.G.A. § 36-62A-20

As used in this article, the term “development authority” means any authority created by law or by constitutional amendment for one or more counties or municipalities, or any combination thereof, for the purpose of promoting the development of trade, commerce, industry, and employment opportunities or for other purposes. Without limiting the generality of the foregoing, such term shall specifically include all authorities created pursuant to Chapter 62 of this title.