Quiet hours in Upland, CA — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
The City of Upland sets a 45 dB(A) residential nighttime noise floor from 10 p.m. to 7 a.m. (vs. 55 dB(A) daytime) under Municipal Code Section 9.40.040, and Section 9.40.100(I) specifically bars yelling, shouting, whistling or singing on public streets, particularly between 11 p.m. and 7 a.m.
Upland's noise rules live in Chapter 9.40 (Unnecessary Noise) of the Municipal Code, which applies citywide in this incorporated city; San Bernardino County's noise code governs only unincorporated areas like neighboring San Antonio Heights, not Upland. Rather than a single curfew clock, Upland sets time-based base ambient noise levels in Section 9.40.040: residential property is held to 45 dB(A) from 10 p.m. to 7 a.m. and 55 dB(A) from 7 a.m. to 10 p.m., so the same sound that is lawful by day can violate the code at night because the nighttime floor is 10 dB lower. On top of the dB framework, Section 9.40.060 makes it independently unlawful to willfully make any loud, unnecessary or unusual noise that disturbs the peace or quiet of a neighborhood or annoys a reasonable person, regardless of measured level. Section 9.40.100(I) targets nighttime street noise directly: it is unlawful to yell, shout, hoot, whistle or sing on public streets, particularly between 11 p.m. and 7 a.m., or at any time so as to disturb the quiet, comfort or repose of persons nearby. Certain construction-type machinery is also banned 10 p.m. to 7 a.m. under Section 9.40.100(O).
A violation of any Chapter 9.40 provision is a misdemeanor under Section 9.40.110, punishable by a fine of up to $1,000, up to six months in jail, or both; each day a violation continues is a separate offense. Noise that annoys reasonable residents may also be abated as a public nuisance by injunction under Section 9.40.130.
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Side-by-side rule comparisons with other cities in San Bernardino County.
See how other cities in San Bernardino County handle quiet hours.
See how Upland's quiet hours rules stack up against other locations.
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