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Fullerton, CA Noise from Specific Sources: HVAC & Mechanical Noise (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Covered equipment
AC, refrigeration, pool equipment
Duty imposed
Certified to meet day/night noise levels
Governing section
FMC § 15.90.050(B)
Applicable numeric standard
§ 15.90.030(A) or (B), by zone
Daytime exemption
None; no 7 a.m.-8 p.m. carve-out
Enforcement
Code Enforcement Division, § 15.90.070

Summary

Air conditioners and refrigeration units count as fixed noise sources under Fullerton's noise chapter, and FMC § 15.90.050(B) requires that any new air conditioning, refrigeration, or pool equipment installation be certified to stay within the chapter's day and night operation noise levels before it can run.

FIXED NOISE SOURCE. A stationary device that creates sounds while fixed or motionless, including but not limited to industrial and commercial machinery and equipment, pumps, fans, compressors, generators, air conditioners and refrigeration equipment. ... § 15.90.050(B): Installation of air conditioning, refrigeration and pool equipment shall be certified to be within the provisions of this chapter for night and day operation noise levels.

Full Breakdown

90's noise scheme rather than leaving mechanical equipment unregulated. 050(B) then imposes a specific installation-stage duty: air conditioning, refrigeration, and pool equipment must be certified to be within the provisions of this chapter for night and day operation noise levels before it goes into service. 030(B) for a restaurant's rooftop unit. carve-out those other activities receive. 070, which investigates noise complaints and can require equipment relocation, screening, or a quieter unit.

Violations & Fines

Operating uncertified air conditioning, refrigeration, or pool equipment that exceeds the chapter's noise levels is enforceable under FMC § 1.08.010 as an infraction, up to $100 for a first violation, $200 for a second within a year and $500 for each additional violation, or as a misdemeanor carrying up to $1,000 and six months in county jail; the equipment owner or operator may appeal a citation to the City Council within 15 days under § 15.90.080.

Frequently Asked Questions

Do new air conditioners need to meet a noise standard in Fullerton?
Yes. FMC § 15.90.050(B) requires air conditioning, refrigeration, and pool equipment to be certified as meeting the chapter's day and night operation noise levels, the residential 55/45-50 dBA table or the C-3/G-C Table 2-1 limits, depending on the property's zone.
Is HVAC installation exempt from noise rules during the day like construction is?
No. Construction and property maintenance get a 7:00 a.m. to 8:00 p.m. exemption under § 15.90.050(A), but air conditioning, refrigeration, and pool equipment installation in § 15.90.050(B) carries no matching daytime exemption and must meet the certified noise levels at all times.
Who investigates a noisy AC condenser complaint in Fullerton?
The Community and Economic Development Director's Code Enforcement Division investigates under FMC § 15.90.070, and the equipment owner or operator can appeal any citation to the City Council within 15 days under § 15.90.080.

Sources & Official References

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