N.C. Gen. Stat. § 132-1.7A

A public record, as defined by G.S. 132-1, does not include any registration or sensitive security information received or compiled by a city pursuant to an alarm registration ordinance. For purposes of this section, the term "alarm registration ordinance" means an ordinance adopted by a city that requires owners of security, burglar, fire, or similar alarm systems to register with the city. Information that is deemed confidential under this section and is not open to public inspection, examination, or copying includes registration information, including the name, home and business telephone number, and any other personal identifying information provided by an applicant pursuant to an alarm registration ordinance, and any sensitive security information pertaining to an applicant's alarm system, including residential or office blueprints, alarm system schematics, and similar drawings or diagrams.