The following are exempt from § 91.50:
(A) Any bell or chime from any building clock, school or church;
(B) Any siren, whistle or bell lawfully used by emergency vehicles or any other alarm systems used in an emergency situation; provided, however, that burglar alarms not terminating within 30 minutes after the responsible person has been notified shall be unlawful;
(C) Noise created as a result of or relating to an emergency;
(D) Warning devices required by OSHA or any local, county, state or federal safety regulations;
(E) Noise created by any aircraft flight operations which are specifically preempted by the Federal Aviation Administration;
(F) All noises coming from moving motor vehicles properly equipped with the manufacturer's standard mufflers and noise reducing equipment, which are operated in accordance with manufacturer's recommendations and safe driving practices;
(G) Noise produced by motorboats, which noises are currently governed by G.S. § 75A-9;
(H) Agricultural and horticultural operations conducted in a reasonable manner on property classified as bona fide farms for ad valorem tax purposes; and
(I) Noise created by public recreational activity or any other activity of temporary duration, or which a permit has been granted pursuant to § 91.54.
(1995 Code, § 22-79)