The operators of all such vehicles so equipped are hereby authorized to use such equipment at all times while engaged in the performance of their duties and services, both within their respective corporate limits and beyond.
In addition to the use of special equipment authorized and required by this subsection, the chief and assistant chiefs of any police department or of any fire department, whether the same be municipal or rural, paid or voluntary, county fire marshals, assistant fire marshals, transplant coordinators, and emergency management coordinators, are hereby authorized to use such special equipment on privately owned vehicles operated by them while actually engaged in the performance of their official or semiofficial duties or services either within or beyond their respective corporate limits.
And vehicles driven by law enforcement officers of the North Carolina Division of Motor Vehicles shall be equipped with a bell, siren, or exhaust whistle of a type approved by the Commissioner, and all vehicles owned and operated by the State Bureau of Investigation for the use of its agents and officers in the performance of their official duties may be equipped with special lights, bells, sirens, horns or exhaust whistles of a type approved by the Commissioner of Motor Vehicles.
Every vehicle used or operated for law enforcement purposes by the sheriff or any salaried deputy sheriff or salaried rural policeman of any county, whether owned by the county or not, may be, but is not required to be, equipped with special lights, bells, sirens, horns or exhaust whistles of a type approved by the Commissioner of Motor Vehicles. Such special equipment shall not be operated or activated by any person except by a law enforcement officer while actively engaged in performing law enforcement duties.
In addition to the use of special equipment authorized and required by this subsection, the chief and assistant chiefs of each emergency rescue squad which is recognized or sponsored by any municipality or civil preparedness agency, are hereby authorized to use such special equipment on privately owned vehicles operated by them while actually engaged in their official or semiofficial duties or services either within or beyond the corporate limits of the municipality which recognizes or sponsors such organization.
N.C. Gen. Stat. § 20-125