Noise levels that can cause extreme offence to one person may not impact on another. A noise may be irritating but not be a 'statutory noise nuisance'. There are no fixed levels of noise which constitute a statutory nuisance.
Most local ordinances include "quiet times." A typical ordinance prohibits loud noises between 11 p.m. and 7 or 8 a.m. on weekdays and 11 p.m. or midnight until 8 to 10 a.m. on Sundays and holidays. It is worthwhile to check your local ordinance before making formal complaint so that you can cite the law.
Under the guidelines of California Penal Code Section 415, it is illegal (i.e., a crime) for a resident to knowingly create loud and unreasonable noises as a means of disturbing another. Unnecessary noise can arise at any time, and punishment can include imprisonment and/or a fine.
For residential environments, the accepted decibel level is lower. Any noise exceeding 70 dB is considered disturbing. Residential limits usually start at 60 or 55 dB (the equivalent noise of a regular vacuum cleaner). Time limits usually apply after 10 pm and until 7 am.
Under this act, night hours are defined from 11 pm to 7 am, and councils have the authority to issue warning notices if noise exceeds permitted levels during this time. The acceptable noise levels are: 34 dBA (decibels adjusted) if the background noise level is no more than 24 dBA.
Sound is measured in units called decibels. Sounds at or below 70 A-weighted decibels (dBA) are generally safe. Long or repeated exposure to sounds at or above 85 dBA can cause hearing loss.
Penal Code: Under the guidelines of Section 415 of the California Penal Code, it is illegal for any resident to knowingly create loud and unreasonable noises as a means of disturbing another. Those convicted of violating this law face a maximum of 90 days in jail and/or a maximum fine of $400.00.
If It Sounds Too Loud, It Is Too Loud Decibels are the unit of measurement for sound, abbreviated dB. Sounds at or below 70 dB are considered safe for our hearing. That's the sound of a normal conversation between two people.
To be a nuisance, the following factors are considered: Disturbance – the noise must interfere with your enjoyment of living in your home, for example, by preventing you sleeping or reading. Loudness – the louder the noise the more likely it is to be a nuisance.