Makes the following changes to GS 20-114.1 regarding the appointment, qualification, and training of a traffic-control officer. Raises the age requirement for traffic-control officers from 18 to 21. Changes the validity of a traffic-control officer's authorization card issued by the appointing police chief or sheriff to expire three years rather than two years from the date of its issuance. Offers as an alternative to the existing three-hour training requirement under the supervision of a law-enforcement officer, meeting eight hours of approved training through a coursed offered by the NC Community College System in directing, controlling, or regulating traffic. Requires four hours of classroom training or instruction and four hours of documented roadside training. Requires persons completing the training course to take a refresher course for reappointment upon expiration of the person's initial appointment, unless the appointment is revoked by the appointing law-enforcement agency. Directs the NC Justice Academy to develop a training program for traffic-control officers to be offered by the NC Community College System, with requirements for initial training and a refresher course. Authorizes a community college to charge a fee for the training and refresher courses, and requires provision of verifying documentation of course completion. Regarding required indemnity against liability for traffic-control officers, requires the indemnity policy to not be cancelable within the authorization period. Requires proof of coverage before issuance of an authorization card if the liability coverage is being provided by a person or entity other than the appointing law-enforcement agency. Makes language gender neutral. Effective October 1, 2021.