North Carolina General Statutes Chapter 20. Motor Vehicles § 20-152. Following too closely

(a) The driver of a motor vehicle shall not follow another vehicle more closely than is reasonable and prudent, having due regard for the speed of such vehicles and the traffic upon and the condition of the highway.

(b) The driver of any motor vehicle traveling upon a highway outside of a business or residential district and following another motor vehicle shall, whenever conditions permit, leave sufficient space so that an overtaking vehicle may enter and occupy such space without danger, except that this shall not prevent a motor vehicle from overtaking and passing another motor vehicle. This provision shall not apply to funeral processions.

(c) Subsections (a) and (b) of this section shall not apply to the driver of any non-leading commercial motor vehicle traveling in a platoon on any roadway where the Department of Transportation has by traffic ordinance authorized travel by platoon. For purposes of this subsection, the term “platoon” means a group of individual commercial motor vehicles traveling at close following distances in a unified manner through the use of an electronically interconnected braking system.