Los Angeles Municipal Code - Noise Regulation

Los Angeles Municipal Code - Noise Regulation - LOS ANGELES...

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Page | 1 LOS ANGELES MUNICIPAL CODE CHAPTER XI NOISE REGULATION (Added by Ord. No. 144,331, Eff. 3/2/73.) Article 1 General Provisions 2 Special Noise Sources 3 Sanitary Operations 4 Vehicles 5 Amplified Sounds 6 General Noise ARTICLE 1 GENERAL PROVISIONS Section 111.00 Declaration of Policy. 111.01 Definitions. 111.02 Sound Level Measurement Procedure and Criteria. 111.03 Minimum Ambient Noise Level. 111.04 Violations: Additional Remedies, Injunctions. 111.05 Enforcement, Citations.
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Page | 2 SEC. 111.00. DECLARATION OF POLICY. It is hereby declared to be the policy of the City to prohibit unnecessary, excessive and annoying noises from all sources subject to its police power. At certain levels noises are detrimental to the health and welfare of the citizenry and in the public interests shall be systematically proscribed. SEC. 111.01. DEFINITIONS. Unless the context otherwise clearly indicates, the words and phrases used in this chapter are defined as follows: (a) “ Ambient Noise ” is the composite of noise from all sources near and far in a given environment, exclusive of occasional and transient intrusive noise sources and of the particular noise source or sources to be measured. Ambient noise shall be averaged over a period of at least 15 minutes at a location and time of day comparable to that during which the measurement is taken of the particular noise source being measured. (Amended by Ord. No. 156,363, Eff. 3/29/82.) (b) “ Commercial Purpose ” is the use, operation, or maintenance of any sound amplifying equipment for the purpose of advertising any business, goods, or services, or for the purpose of attracting the attention of the public to, advertising for, or soliciting patronage or customers to or for any performance, show, entertainment, exhibition, or event, or for the purpose of demonstrating such sound equipment. (Amended by Ord. No. 156,363, Eff. 3/29/82.) (c) “ Decibel ” (dB) is a unit of level which denotes the ratio between two (2) quantities which are proportional to power; the number of decibels corresponding to the ratio of two (2) amounts of power is ten (10) times the logarithm to the base (10) of this ratio. (Amended by Ord. No. 156,363, Eff. 3/29/82.) (d) “ Emergency Work ” is work made necessary to restore property to a safe condition following a public calamity or work required to protect persons or property from an imminent exposure to danger, or work by private or public utilities when restoring utility service. (Amended by Ord. No. 156,363, Eff. 3/29/82.) (e) “ Impulsive Sound ” is sound of short duration, usually less than one second, with an abrupt onset and rapid decay. By way of example “ impulsive
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Page | 3 sound ” shall include, but shall not be limited to, explosions, musical base drum beats, or the discharge of firearms. (Amended by Ord. No. 156,363, Eff. 3/29/82.) (f) “ Motor Vehicle ” includes, but shall not be limited to, automobiles, trucks, motorcycles, minibikes and go-carts.
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Los Angeles Municipal Code - Noise Regulation - LOS ANGELES...

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