Quiet hours in El Cajon, CA — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
El Cajon regulates noise under Municipal Code Chapter 9.44 using a reasonableness standard rather than specific decibel limits. Equipment and construction noise is prohibited between 7 PM and 7 AM within residential zones or 500 feet of them.
El Cajon Municipal Code Chapter 9.44 (Noise Regulations) prohibits disturbing, excessive, or offensive noise. Unlike many cities, El Cajon does not specify decibel limits or formal quiet hours but uses a reasonableness standard. However, Section 9.44 specifically prohibits operating equipment or performing outside construction, maintenance, or repair work between 7 PM and 7 AM within any residential zone or within 500 feet of one. Prohibited noises include loud peddler/hawker cries, amplified sound reproduction devices that disturb neighbors, and loud horns or mechanical sound devices. Motor vehicle noise from unnecessary operations (backfiring, racing, airplane buzzing) is also prohibited. San Diego County's noise ordinance (NO-404) with specific dB levels may apply in certain circumstances.
Noise violations constitute a public nuisance subject to abatement under Chapter 1.16. Citations and fines for repeated violations. Misdemeanor for flagrant offenses.
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Side-by-side rule comparisons with other cities in San Diego County.
See how other cities in San Diego County handle quiet hours.
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