The following sounds are exempt from the provisions of this Chapter:
(a) Construction and maintenance, or the demolition of structures between 6:00 a.m. and 8:00 p.m.
(b) Safety signals, warning devices, and emergency pressure relief valves.
(c) Moving sources such as vehicles and aircraft, except when the moving sources are operated as part of sporting or entertainment events.
(d) Emergency work involving equipment or vehicles to protect life or property.
(e) Authorized emergency vehicles when responding to an emergency call or acting in time emergency.
(f) Non-amplified crowd noises resulting from activities such as those planned by school, governmental or community groups, or organized sports.
(g) Church chimes.
(h) City vehicle, equipment, or facilities while being operated for official use.
(i) Heating and cooling equipment when it is functioning in accordance with manufacturer’s specifications and is in proper operating condition, provided that no unit may create excessive, unnecessary, or offensive noise causing annoyance or discomfort to a reasonable person of normal sensitivity within any sleeping or living area inside any dwelling unit.
(j) Any other activity to the extent a regulation has been pre-empted by state or federal law.
(k) Noise producing structures, facilities, or activities legally established prior to the effective date of this section that do not conform to the provisions of this section, shall be considered to be legally non-conforming. Such structures, facilities, or activities may continue in their non-conforming state and may make reasonable repairs and alterations.
(l) Structural repairs, additions, enlargements, changes of occupancy may be made subject to complying with the provisions of this section and all other provisions of this code.
(m) Emergency alarms, such as fire alarms or burglar alarms, prior to a reasonable opportunity for the owner or tenant in possession of the premises served by such alarm to turn off the alarm.
('76 Code, § 10-1-9) (Ord. 372, passed 1-12-78; Am. Ord. 2015-009, passed 12-17-15)