For the purpose of skills testing and determining commercial drivers license classification, only the manufacturer's GVWR shall be used.
The tests shall be prescribed and conducted by the Division. Provided, a person who is at least 18 years of age may be issued a commercial drivers license if the person is exempt from, or not subject to, the age requirements of the federal Motor Carrier Safety Regulations contained in 49 C.F.R., Part 391 , as adopted by the Division.
N.C. Gen. Stat. § 20-37.13