San Diego County, CA Noise from Specific Sources: Generator Noise (2026)
Key Facts
- Testing exemption window
- 7 a.m. to 7 p.m. only
- Power-failure exemption
- Law enforcement, fire, hospital agents only
- Outside exemption
- Subject to Table 36.404 sound limits
- Governing chapter
- County Code Ch. 36, Division 6
- Enforcement
- Sheriff and noise control officer
Summary
In unincorporated San Diego County, testing an emergency generator is exempt from the noise ordinance only between 7 a.m. and 7 p.m.; outside those hours the general noise rules of Chapter 36 apply.
(4) The operation of an emergency generator after a power failure, by an employee or agent of a law enforcement agency, fire department, hospital or other medical or surgical facility that is providing emergency medical services. (5) The reasonable testing of an emergency generator by any person provided that the testing is conducted between the hours of 7 a.m. and 7 p.m.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-141: Administrative: Current through Ord. No. 11007 (N.S.), effective 7-10-26 | Regulatory: Current through Ord. No. 11008 (N.S.), effective 7-24-26).
Full Breakdown
San Diego County's noise ordinance (County Code Chapter 36, Division 6) exempts two generator scenarios in the unincorporated area. Section 36.417(a)(5) exempts routine testing of an emergency generator by any person, but only if the test runs between 7 a.m. and 7 p.m. Section 36.417(a)(4) separately exempts operating an emergency generator after a power failure, but only when the operator is an employee or agent of a law enforcement agency, fire department, hospital, or other medical or surgical facility providing emergency services. A generator running at night, or tested outside daytime hours, loses the exemption and is measured against the property-line sound limits in Table 36.404.
Violations & Fines
Testing outside 7 a.m. to 7 p.m., or non-emergency generator noise that exceeds the Table 36.404 property-line decibel limits, violates Chapter 36; the Sheriff or noise control officer enforces it, with nuisance abatement available under County Code § 11.121.
Frequently Asked Questions
Can I test my generator at night in unincorporated San Diego County?
Is running a generator during a power outage exempt from the noise ordinance?
Sources & Official References
Other rules in San Diego County
California rules heatmap·Compare San Diego County to another location·View the California noise from specific sources overview
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