Quiet hours in Castaic, CA — also called the noise ordinance, nighttime noise rules, or residential quiet time — define the hours during which excessive noise is prohibited.
Los Angeles County Code Title 12, Chapter 12.08 establishes exterior noise standards for unincorporated areas. Residential zones are limited to 50 dBA daytime and 45 dBA nighttime. Nighttime quiet hours run from 10 PM to 7 AM.
LA County Code Section 12.08.390 sets exterior noise standards for unincorporated communities by zone. Residential zones (Noise Zone I) allow a maximum of 50 dBA daytime and 45 dBA nighttime. Commercial zones (Noise Zone II) permit 60 dBA daytime and 55 dBA nighttime. Industrial zones (Noise Zone III) allow 70 dBA at all times. Daytime is 7 AM to 10 PM and nighttime is 10 PM to 7 AM. Sound exceeding these levels for more than 30 cumulative minutes per hour violates Standard No. 1. A separate standard limits sound exceeding the base by 5 dB to no more than 15 minutes per hour. The Department of Public Health Environmental Health Division enforces these limits in unincorporated areas like East LA, Altadena, and Hacienda Heights.
Violations are misdemeanors under Section 12.08.590, punishable by fines up to $1,000 and/or six months in county jail. Citations may be issued under Section 12.08.390 for exceeding exterior noise standards.
Castaic, CA
Garage conversions to ADUs in unincorporated Castaic are governed by LA County Code Title 22 §22.140.640 and California Government Code §65852.2. No replacem...
Castaic, CA
Castaic is an unincorporated CDP in Los Angeles County governed by LA County Code Title 22 §22.140.640 (Accessory Dwelling Units and Junior Accessory Dwellin...
Los Angeles County, CA
The 2022 LA County Curb Management Strategy prioritizes pickup and dropoff over parking and loading in commercial corridors. DPW retrofits curb zones using a...
Los Angeles County, CA
LA County Code Title 12.84 bans expanded polystyrene takeout containers at unincorporated-area food businesses. California AB-1201 sets ASTM compostability l...
Los Angeles County, CA
LA County Code Title 12.84 (Ord. 2008-0006) bans expanded polystyrene foam cups at all county facilities and food vendors operating on county property. Calif...
Los Angeles County, CA
California AB-1276 prohibits restaurants and food vendors from automatically providing single-use foodware accessories. Utensils, straws, condiments, and sti...
Side-by-side rule comparisons with other cities in Los Angeles County.
See how other cities in Los Angeles County handle quiet hours.
See how Castaic's quiet hours rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.