N.C. Gen. Stat. § 105-277.01

Farm products (including crops but excluding poultry and other livestock) held by or for a cooperative stabilization or marketing association or corporation to which they have been delivered, conveyed, or assigned by the original producer for the purpose of sale are hereby designated a special class of property under authority of Article V, Sec. 2(2), of the North Carolina Constitution. Before being assessed for taxation the appraised valuation of farm products so classified shall be reduced by the amount of any unpaid loan or advance made or granted thereon by the United States government, an agency of the United States government, or a cooperative stabilization or marketing association or corporation.