O.C.G.A. § 45-3-3: Officer authorized to administer oaths; oaths to be written, subscribed, and dated.

When not otherwise provided by law and when not directed in the dedimus potestatem, the oaths of office may be taken before any officer authorized by law to administer an oath. Such oaths shall be written and subscribed by the persons taking them and accompanied by the certificate of such officer, which shall specify the day and year taken.