If that party next door is getting out of hand (or your party is getting lit and you hear the cops at the door), here’s what you need to know about the law.

What are the general noise restrictions in the LA area?Noise

Throughout the state of California it is a crime to create a “disturbance of the peace” by maliciously creating a “loud and unreasonable noise.” Violations may result in up to 90 days in county jail and/or fine of up to $400.1Penal Code 415

It is also a crime to cause or maintain a “public nuisance” which interferes with the “comfortable enjoyment of life or property” by a community.2Penal Code 370, 372 Violations of this are generally a misdemeanor, with a penalty of up to 6 months in jail and/or fine of up to $1000.3Penal Code 19

More specifically, in the city of LA, no person may create or allow to continue any “loud or raucous noise” which “unreasonably interfere[s] with the peace and quiet” of others4LAMC 41.57; see also LAMC 116.01 Also if the police have to come back a second time after already responding to a “loud party,” they may charge a “Second Response Service Fee.”5LAMC 41.58

For more on noise regulations in the city of LA, see LAMC Chapter 11.

In unincorporated communities in LA County:6LACMC Section 12.08.390

residential areas should not be louder than 45 decibels at night* and 50 decibels during the day*

commercial areas should not be louder than 55 decibels at night* and 60 decibels during the day*

industrial areas should not be louder than 70 decibels at any time

*Note: Nighttime is defined as 10p – 7am, and daytime is 7am – 10p.

What laws are there on specific noisy items or activities?

  • In the city of LA

no construction work is permitted between the hours of 9pm – 7am. A person who knowingly and willfully violates this law is guilty of a misdemeanor.7LAMC 41.40

Gas-powered leaf blowers may not be used within 500 feet of a residence.8LAMC 112.04(C)

Powered equipment or tools may not be louder than 75 decibels.9LAMC 112.05

  • In unincorporated Los Angeles county

Construction is not allowed between 7p – 7am, or on Sundays or holidays.10LACMC 12.08.440

  • In California, cars may not make noise louder than 95 decibels, and motorcycles may not make noise louder than 80 decibels.11CA Veh Code Sec 27151, 27200-27207

Helicopter noise: You can report helicopter noise in LA County here.


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