N.C. Gen. Stat. § 69-25.8
Any county, municipal corporation or fire protection district performing any of the services authorized by this Article shall be subject to the same authority and immunities as a county would enjoy in the operation of a county fire department within the county, or a municipal corporation would enjoy in the operation of a fire department within its corporate limits.
No liability shall be incurred by any municipal corporation on account of the absence from the city or town of any or all of its fire-fighting equipment or of members of its fire department by reason of performing services authorized by this Article.
Members of any county, municipal or fire protection district fire department shall have all of the immunities, privileges and rights, including coverage by workers' compensation insurance, when performing any of the functions authorized by this Article, as members of a county fire department would have in performing their duties in and for a county, or as members of a municipal fire department would have in performing their duties for and within the corporate limits of the municipal corporation.
N.C. Gen. Stat. § 69-25.8