Frequently Asked Questions (FAQ)

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

ANSWER:
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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