Upland, CA Noise Ordinances: Quiet Hours (2026)
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.
Key Facts
- Yelling/shouting curfew
- 11 p.m.-7 a.m.
- Heavy equipment curfew
- 10 p.m.-7 a.m.
- Construction work limit
- 7 a.m.-6 p.m. weekdays
- Violation level
- misdemeanor, up to $1,000/6 months
- Governing section
- UMC § 9.40.100(I), (O)
Summary
Beyond the general ambient decibel table, Upland Municipal Code § 9.40.100 bans specific nighttime conduct outright: yelling, shouting, or singing on public streets between 11:00 p.m. and 7:00 a.m., and operating a steam shovel, pneumatic hammer, derrick, or similar loud construction appliance between 10:00 p.m. and 7:00 a.m.
I. Yelling, Shouting. It is unlawful for any person to yell, shout, hoot, whistle, or sing on the public streets, particularly between the hours of 11:00 p.m. and 7:00 a.m., or at any time or place so as to annoy or disturb the quiet, comfort, or repose of any persons in the vicinity. ... O. Hammers, Etc. It is unlawful for any person to operate between the hours of 10:00 p.m. and 7:00 a.m. any steam shovel, pneumatic hammer, derrick, steam or electric hoist or other appliance, the use of which is attended by loud or unusual noise.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4480959; v4 updated 2025-09-22).
Full Breakdown
Section 9.40.100 lists specific acts the city council has declared to be per se loud, disturbing, and unnecessary noise, several of which function as a nighttime quiet-hours curfew layered on top of the general decibel table in Section 9.40.040. Subsection (I), Yelling, Shouting, makes it unlawful for any person to yell, shout, hoot, whistle, or sing on the public streets, particularly between 11:00 p.m. and 7:00 a.m., or at any time or place so as to annoy or disturb the quiet, comfort, or repose of persons nearby.
Subsection (O), Hammers, Etc., separately bars operating a steam shovel, pneumatic hammer, derrick, steam or electric hoist, or other appliance attended by loud or unusual noise between 10:00 p.m. and 7:00 a.m. Construction and repair work is likewise confined to daytime hours under Subsection (M): erecting, demolishing, altering, or repairing a building is limited to 7:00 a.m. to 6:00 p.m. on weekdays, with a building inspector's emergency permit, capped at three days at a time, the only way to work later. These nighttime-specific rules operate independently of Section 9.40.040's ambient decibel table: a person can violate Subsection (I) or (O) purely by the hour and type of activity, without the city needing to take a decibel measurement at all, which makes them easier for police to enforce on the street than the metered standard in Section 9.40.070.
Violations & Fines
A violation of Section 9.40.100, including the nighttime yelling and heavy-equipment provisions, is a misdemeanor under Section 9.40.110, carrying a fine of up to $1,000, up to six months in jail, or both, with each day of a continuing violation charged separately. Officers do not need a sound-level-meter reading to cite the hour-based prohibitions in Subsections (I), (M), and (O).
Frequently Asked Questions
Is there a set time when yelling or loud singing outside becomes illegal in Upland?
When can construction equipment like a hoist or pneumatic hammer run in Upland?
Does the city need a decibel meter reading to cite someone for a curfew violation?
Sources & Official References
Other rules in Upland
California rules heatmap·Compare Upland to another location·View the California noise ordinances overview
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Quiet Hours in Nearby Cities
How other cities in San Bernardino County handle quiet hours.