N.C. Gen. Stat. § 119-36: Certified copies of official tests admissible in evidence.

A certified copy of the official test of the analysis of any petroleum product, under the seal of the Commissioner of Agriculture, shall be admissible as evidence of the fact therein stated in any of the courts of this State on the trial of any issue involving the qualities of said product. (1937, c. 425, s. 20; 1949, c. 1167.)