A pleading subsequent to the Notice of Hearing shall not be entitled to filing unless accompanied by an Acknowledgement of Service required hereunder or a certificate that the service required hereunder has been made. In addition, a pleading shall not be entitled to filing unless it is stamped or otherwise marked in the upper left hand corner on the first page of the document as "original", and a duplicate copy is simultaneously submitted which is stamped or otherwise marked as "duplicate" in the upper left hand corner on the first page.
Ga. Comp. R. & Regs. R. 295-6-.04
O.C.G.A. Sec. 43-1-4.