The following uses of sound amplifying equipment and activities are exempt from the provisions of this chapter:
(a) Vehicle sound systems, horns, radios and similar devices located within or upon the vehicle, to the extent the sound from any such device is regulated by, and the device is used in accordance with, provisions of the California Vehicle Code;
(b) Use of sound amplifying equipment when used and heard only by occupants of private premises on which the vehicle is located;
(c) Warning devices on authorized emergency vehicles, or any warning device on other vehicles when used for traffic safety purposes or any other device when used by a public safety officer for official purposes;
(d) Use of equipment by any duly authorized facility operator, tenant or lessee as an integral part of any event at stadiums, athletic facilities, or parks;
(e) Use of equipment or machinery as part of construction, alteration, repair, grading or improvement of any building, structure, road or improvement to real property for which a permit has been issued by the city or state or federal government;
(f) Use of equipment or machinery operated by city employees, agents or franchisees, in the course of performing maintenance, construction, trash collection or other municipal services;
(g) Use of sound amplifying equipment as part of vending from a vehicle for which a permit has been obtained pursuant to Chapter 4.60 of this code;
(h) Use of sound amplifying equipment as part of any parade sponsored or conducted by the city, or any parade that is conducted in compliance with all local, state and federal laws; and
(i) Use of sound amplifying equipment where such use is otherwise expressly permitted by law.
(Ord. 604 § 2 (part), 2006).