N.C. Gen. Stat. § 106-956

(1) On-call is time during which a firefighter is required to be available to return to the duty station or respond to an emergency within 30 minutes. The Department of Agriculture and Consumer Services shall provide each firefighter in on-call status with an electronic communication device that makes the wearer accessible to the firefighter's duty station.

(2) Notwithstanding subsection (a) of this section, after 14 consecutive days that a firefighter is on duty, the Department of Agriculture and Consumer Services shall permit the firefighter to be off duty for two days so long as the firefighter gives the Department of Agriculture and Consumer Services a means of contact where the firefighter can be reached. On the days the firefighter is permitted to be off duty, the Department of Agriculture and Consumer Services may contact the firefighter only when there is a bona fide emergency.