No airport zoning regulations shall be adopted, amended, or changed under sections 360.011 to 360.076, except by action of the governing body of the municipality or county in question, or the boards provided for in section 360.063, subdivisions 3 and 7, or by the commissioner as provided in subdivisions 6 and 8, after public hearings, at which parties in interest and citizens shall have an opportunity to be heard. A public hearing shall be held on the proposed regulations before they are submitted for approval to the commissioner and after that approval but before final adoption by the local zoning authority. Notice of a hearing required pursuant to this subdivision shall be published by the local zoning authority at least three times during the period between 15 days and five days before the hearing in an official newspaper and in a second newspaper designated by that authority which has a wide general circulation in the area affected by the proposed regulations. The notice shall not be published in the legal notice section of a newspaper. Notice of a hearing shall also be mailed to the governing body of each political subdivision in which property affected by the regulations is located. Notice shall be given by mail at least 15 days before each hearing to any persons in municipalities that own land proposed to be included in safety zone A or B as provided in the rules of the Department of Transportation and to persons or municipalities that have previously requested such notice from the authority. For the purpose of giving mailed notice, the authority may use any appropriate records to determine the names and addresses of owners. A copy of the notice and a list of the owners and addresses to which the notice was sent shall be attested to by the responsible person and shall be made a part of the records of the proceedings. The failure to give mailed notice to individual property owners, or defects in the notice, shall not invalidate the proceedings; provided a bona fide attempt to comply with this subdivision has been made. A notice shall describe the property affected by the proposed regulations and the restrictions to be imposed on the property by the regulations and shall state the place and time at which the proposed regulations are available for public inspection.
Prior to adopting zoning regulations for an airport hazard area under sections 360.011 to 360.076, the municipality, county, or joint airport zoning board which is to adopt the regulations shall submit its proposed regulations to the commissioner in order that the commissioner may determine whether it conforms to the standards prescribed by the commissioner. The commissioner shall immediately examine the proposed regulations and report to the municipality, county, or joint airport zoning board the commissioner's approval, or objections, if any. If objections are made by the commissioner on the ground that the regulations do not conform to the standards prescribed by the commissioner for the class of airport involved, the municipality, county, or joint zoning board shall make amendments as are necessary to meet the objections unless it demonstrates that the social and economic costs of restricting land uses in accordance with the standards outweigh the benefits of a strict application of the standards. The governing body of the municipality or county or the joint airport zoning board shall not adopt the regulations or take other action until the proposed regulations are approved by the commissioner. The commissioner may approve local zoning ordinances that are more stringent than the standards. A copy of the regulations as adopted shall be filed with the county recorder in each county in which the zoned area is located.
Substantive rights existing prior to the passage of this subdivision and previously exercised are not affected by the filing of the regulations.