The following uses and activities shall be exempt from the noise level regulations:
(A) Noises not directly under the control of the property users;
(B) Noises emanating from construction and maintenance activities between 7:00 a.m. and 9:00 p.m.;
(C) The noises of safety signals, warning devices, and emergency pressure relief valves; and
(D) Transient noises of moving sources, such as automobiles, trucks, airplanes, and railroads.
('80 Code, § 152.241) (Ord. 94-14, passed 7-5-94)