Final public hearing. The governing body shall conduct a public hearing at which all parties in interest and citizens shall have an opportunity to be heard. Notification of the time and place of the public hearing shall be in accordance with the Open Meetings Act (NMSA 1978, §§ 10-15-1 to 10-15-4) at least 15 days prior to the hearing. The notice of public meeting published 15 days before the Commission meeting shall be considered sufficient notice if it also has included the time and place of the public hearing to be held by the governing body. Whenever a change in a zoning district boundary is proposed, notice of the public hearing shall be mailed by certified mail, return receipt requested, to the owners of land within the area proposed to be changed by a zoning regulation and within 100 feet, excluding public right-of-way, of the area proposed to be changed by zoning regulation.