Cal. Gov. Code § 50485.5

No airport zoning regulations shall be adopted, amended or changed under this article except by action of the legislative body of the city or county in question after a public hearing in relation thereto, at which parties in interest and citizens shall have an opportunity to be heard. Notice of the hearing shall be published pursuant to Section 6066 in an official paper, or a paper of general circulation, in the city or county in which is located the airport hazard area to be zoned.