No airport zoning regulations shall be adopted, amended, or changed under the Airport Zoning Act except by the action of the legislative body of the political subdivision in question, or the joint airport zoning board provided for in section 3-304, after a public hearing in relation thereto, at which parties in interest and citizens shall have an opportunity to be heard. At least ten days' notice of the hearing shall be published in an official paper, or a paper of general circulation, in the political subdivision or subdivisions in which the airport hazard area is located.