All dimension lumber stamped to designate its grade must be inspected and grade stamped only by an agency currently accredited by the American Lumber Standard Committee, or by an organization participating in a bonafide grade stamping supervisory program administered by any such agency. No grade stamp shall be applied to such dimension lumber other than one approved for the Agency by the American Lumber Standard Committee.
Ga. Comp. R. & Regs. R. 40-22-9-.02
O.C.G.A. Sec. 2-14-121.