Noise from Specific Sources in San Ramon, CA (2026)
2 verified noise from specific sources rules for San Ramon, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
HVAC & Mechanical Noise
San Ramon Municipal Code section B6-97 requires commercial machinery, pumps, fans and air conditioning equipment to be muffled so they don't create noise, making unmuffled commercial HVAC operation a citable infraction. The rule targets equipment run for a business purpose rather than a homeowner's own residential AC unit.
San Ramon Commercial HVAC Noise Rule
Some RestrictionsSan Ramon Municipal Code sec. B6-97
It is unlawful for a person to operate machinery, equipment, pump, fan, air conditioning apparatus or similar mechanical device used for commercial purposes in the manner which creates noise, unless the noise is muffled and the device is equipped with a muffler sufficient to deaden the noise.
Generator Noise
San Ramon requires a permit to run an internal combustion engine, including a portable generator, in a way that causes excessive noise between 8 p.m. and 8 a.m. under Municipal Code section B6-99. Running or repairing a noisy generator overnight without that permit is a citable infraction.
San Ramon Generator Engine Noise Curfew
Some RestrictionsSan Ramon Municipal Code sec. B6-99
It is unlawful for a person to operate or repair an internal combustion engine in the manner which causes excessive noise between the hours of eight p.m. of one day and eight a.m. of the next day without a permit.
Looking for Contra Costa County county-wide rules?
County ordinances apply to unincorporated areas and may supplement San Ramon city rules.
Noise from Specific Sources in Contra Costa County →