Noise from Specific Sources in San Luis Obispo County, CA (2026)
1 rule for unincorporated San Luis Obispo County, California.
Verified from official government sources
Note: These county rules apply to unincorporated areas of San Luis Obispo County. If you live within an incorporated city, that city's own rules apply: see the city list below.
HVAC & Mechanical Noise
Air conditioning and refrigeration equipment in unincorporated San Luis Obispo County is held to a stricter exterior noise cap than general sources: 55 dB for units installed before June 1992, dropping to 50 dB for anything installed or used after June 1993.
SLO County AC and Refrigeration Noise Limit
Some RestrictionsSan Luis Obispo County Code § 22.10.120(D)(1)
D.Other noise sources. The noise level standards in this Section apply to the following.1.Air conditioning and refrigeration. Notwithstanding the provisions of Subsection B.1, when the intruding noise source is an air conditioning or refrigeration system or associated equipment installed prior to June 4, 1992, the exterior noise level as measured as provided in Subsection E. shall not exceed 55...
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