Before entering upon their duties at any primary or election, all managers and clerks shall be duly sworn in the presence of each other. The chief manager shall first be sworn by an assistant manager, and the assistant managers and clerks shall then be sworn by the chief manager. Each of them shall immediately sign in duplicate the oath taken by him or her upon forms to be furnished by the superintendent, and the same shall be attested by the officer who administered the oath.
OCGA § 21-2-93