Frequently Asked Questions (FAQ)

What regulations govern aircraft noise at and around airports in California?

According to the Federal Aviation Administration, an acceptable noise level for residential use is 65 CNEL (Community Noise Equivalent Level in decibels) which is a cumulative measurement of ambient noise. Neither historically nor currently are there any residences or businesses surrounding the County-owned airports exposed to 65 CNEL or greater as a result of aircraft activity.

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