§ 39. Changes and amendments.

A.

Generally. The city council may from time to time amend, supplement, or change by ordinance the boundaries of the districts or the regulations herein established. Before taking action on any such proposed amendment, supplement or change, the city council shall submit the same to the planning and zoning commission for its recommendation and report. A public hearing shall be held by the city council before adopting any proposed amendment, supplement, or change, notice of which hearing shall be given by publication one time in the official paper of the city stating the time and place of such hearing, which time shall not be earlier than 15 days from the date of publication. Unless such proposed amendment, supplement, or change has been approved by the planning and zoning commission, or if a protest against such amendment, supplement, or change has been filed with the city secretary, duly signed and acknowledged by the owners of 20 percent or more, either of the area of the lots included in such proposed change or all property within 200 feet of all boundaries of the proposed change, such amendment, supplement, or change shall not become effective except by a favorable vote of three-fourths of all members of the city council.

B.

Notice. Written notice of all public hearings before the planning and zoning commission on proposed changes in classification shall be sent to all owners of property or to the person rendering the same for City taxes, located within 200 feet of any property upon which the change in classification is proposed, not less than ten days before such hearing is held. Such notice may be served by using the address as listed on the most recent city tax roll and depositing the notice, postage paid, in the United States mail. This shall be the method of notice for all public hearings of the planning and zoning commission and the board of adjustment.