In accordance with O.C.G.A. § 2-12-7(b), all methods of analysis used for assaying of fertilizer samples shall be those specified by the Commissioner after giving due consideration to those adopted by the AOAC International or published in scientific journals.
Ga. Comp. R. & Regs. R. 40-6-7-.02
O.C.G.A. Sec. 2-12-15.