O.C.G.A. § 21-2-326 (2019)

(a) If ballot labels for a precinct at which a voting machine is to be used are not delivered to the poll officers as required by this chapter, the chief manager of such precinct shall cause other labels to be prepared, printed, or written, as nearly in the form of official ballot labels as practicable; and the poll officers shall cause the labels, so substituted, to be used at the primary or election, in the same manner, as nearly as may be, as the official labels. Such labels, so substituted, shall be known as unofficial ballot labels. (b) If any voting machine shall become out of order during a primary or election and repair or substitution cannot be made, paper ballots, either printed or written, and of any suitable form, may be used for the taking of votes.