N.C. Gen. Stat. § 143-166.18

Any person designated in G.S. 143-166.13, who, as a result of an injury or injuries proximately caused by the heightened risk and special hazards directly related to the violent nature of the eligible person's official duties, is totally or partially incapacitated to perform any duties to which the person may be lawfully assigned, shall report the incapacity as soon as practicable in the manner required by the secretary or other head of the department to which the agency is assigned by statute.