How Chico Handles Noise Ordinances: A Practical Guide
Chico maintains 133 local ordinances across all categories, and 7 of those deal specifically with noise ordinances. Here is a breakdown of what the city actually requires, what is prohibited, and where Chico falls on the strict-to-permissive spectrum compared to other cities.
Vehicle Noise
Chico caps vehicle sound amplification systems at 50 feet audibility on public property and 25 feet on private property, and bans unnecessary horn use.
Key details: Public property limit: Audible past 50 feet. Private property limit: Audible past 25 feet. Horn use: Banned when parked/no danger. Highway vehicles: Governed by CA Vehicle Code.
Enforced as an infraction with fines set by council resolution under Chico Municipal Code § 1.15.050; repeat or willful violations can be charged as a misdemeanor.
Construction Hours
Chico limits construction equipment to 83 dBA at 25 feet and 86 dBA at the property line, even during permitted work hours, under the city's noise ordinance.
Key details: Equipment cap: 83 dBA at 25 ft. Site cap: 86 dBA at property line. Scope: Applies during permitted hours too. Enforcement: Chico Municipal Code Chapter 9.38.
Exceeding the dBA caps is enforced as an infraction under Chapter 9.38, with fines set by council resolution plus Butte County Superior Court fees; repeat violations can be charged as misdemeanors.
Aircraft Noise
Chico's Airport Environs (-AE) overlay zone requires noise-insulated construction, recorded avigation easements, and a recorded Notice of Aircraft Overflight for development near Chico Municipal Airport and Ranchero Airport, addressing aircraft noise exposure under Chico Municipal Code § 19.52.020.
Key details: Overlay zone: -AE Airport Environs zone. Covers: Chico Municipal & Ranchero Airports. Noise standard: CNEL interior noise insulation. Required before permits: Recorded avigation easement. Also required: Notice of Aircraft Overflight recorded.
Permits and entitlements aren't issued until the avigation easement and Notice of Aircraft Overflight are signed and recorded with the Butte County Recorder; the code sets no separate fine schedule for this section.
Barking Dogs
Chico's dog nuisance ordinance makes it unlawful for a dog to disturb a neighborhood by howling, barking, or making unusual noises, with the owner liable for the violation.
Key details: Barking designated as: public nuisance. Liable party: the dog's owner. Abatement authority: § 7.08.140. Penalty amount: set by council resolution.
Infraction; civil fine set by City Council resolution under Chapter 1.15; abatement action against the dog's owner is also authorized.
Decibel Limits
Chico caps noise from commercial and industrial property at 70 dBA measured at any point outside the property plane, a single flat limit that applies at all hours of the day.
Key details: Limit: 70 dBA outside property plane. Applies to: Commercial and industrial property. Day/night split: None (flat limit). Measured: By sound level meter.
A violation triggers a warning on first response, but officers may cite immediately after two or more prior responses to the same site or during nighttime hours; penalties run through Section 9.38.130 and Chapter 1.15 administrative fines.
Quiet Hours
Chico lets officers skip the warning step and cite immediately for nighttime noise, generally 10 p.m. to 7 a.m. on weeknights and after midnight on weekends.
Key details: Weeknight curfew: 10 p.m.-7 a.m.. Weekend curfew: 12:01 a.m.-7 a.m.. Warning skipped: During curfew hours. Repeat offense: 180-day owner liability.
Citations during the listed nighttime hours (or after a second response) proceed straight to an infraction fine under Chico Municipal Code § 1.15.050, without a prior warning.
Amplified Music & Outdoor Sound
Chico requires a discretionary use permit for any business within 300 feet of a residential district that plays amplified music or operates 10 p.m. to 6 a.m.
Key details: Trigger distance: Within 300 feet of residential. Permit type: Discretionary use permit. Late-hours businesses: Also need use permit. Civic Center: Amplified sound barred.
Operating amplified music near a residential district without the required use permit is a zoning code violation, enforceable through the city's administrative citation and code enforcement process.
This is one of the stricter rules in Chico's municipal code. If you are unsure whether your situation complies, it is worth checking with the city before proceeding.
The Bottom Line
Chico's noise ordinances rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Chico is broadly strict or permissive.
These rules come from Chico's publicly available municipal code. For complete penalty schedules, exemption details, and answers to common questions, see the individual ordinance pages throughout this guide.