Noise Ordinances in Concord, CA (2026)
5 verified noise ordinances for Concord, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Quiet Hours
Concord enforces nighttime quiet hours between 10 PM and 7 AM on weekdays and Saturdays, and until 8 AM on Sundays and holidays. During these hours, amplified sound, loud gatherings, power equipment, and other disturbances are prohibited in residential areas. Violations can result in warnings, administrative citations, and misdemeanor charges for repeat offenses.
Noise: Quiet Hours
Some RestrictionsConstruction Hours
Construction activity in Concord is generally permitted Monday through Friday from 7:30 AM to 6:00 PM and Saturdays from 8:00 AM to 5:00 PM. Construction is prohibited on Sundays and city-recognized holidays without a special permit. These hours apply to both commercial and residential projects, including homeowner DIY work that generates significant noise.
Noise: Construction Hours
Some RestrictionsLeaf Blower Rules
Lawn and garden equipment in Concord may be operated Monday through Friday from 7:30 AM to 6:00 PM, Saturdays from 8:00 AM to 5:00 PM, and Sundays from 9:00 AM to 5:00 PM. Professional landscapers and homeowners must comply, and all equipment must meet noise ordinance decibel limits at the property line.
Noise: Lawn Equipment Hours
Some RestrictionsCal. Health & Safety Code § 43018.11 (AB 1346, 2021 - Small Off-Road Engines)
Small off-road engines (SORE), which are used primarily in lawn and garden equipment, emit high levels of air pollutants, including oxides of nitrogen (NOx), reactive organic gases (ROG), and particulate matter (PM). NOx and ROG together contribute to formation of ozone, a criteria pollutant with a national ambient air quality standard set by the United States Environmental Protection Agency (U...
Amplified Music & Events
Amplified music in Concord must comply with the city's noise ordinance decibel limits and quiet hours. Outdoor amplified sound audible beyond the property line during nighttime hours is a violation. Special event permits are required for commercial amplified entertainment and large gatherings, with conditions set by the city.
Noise: Amplified Music
Some RestrictionsVehicle Noise
Vehicle noise in Concord is governed primarily by California Vehicle Code sections that limit exhaust noise, prohibit modified mufflers, and cap amplified sound audible at 50 feet. Concord Police enforce these alongside local ordinance provisions prohibiting revving, racing, and extended idling in residential areas.
Noise: Vehicle Noise
Some RestrictionsCalifornia Vehicle Code § 27150
(a) Every motor vehicle equipped with an internal combustion engine and subject to registration shall at all times be equipped with an adequate muffler in constant operation and properly maintained to prevent any excessive or unusual noise, and no muffler or exhaust system shall be equipped with a cutout, bypass, or similar device. (b) Except as provided in Division 16.5 (commencing with Sectio...
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County ordinances apply to unincorporated areas and may supplement Concord city rules.
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