In addition, if the proposed amendment involves a Zoning Map change, notice of said public hearing shall be conspicuously posted by the Township at points deemed sufficient by the Township along the affected tract at least seven days prior to the date of the hearing. Further, where the proposed amendment involves a Zoning Map change, other than a comprehensive municipal rezoning, the Township shall notify all property owners within the area proposed for rezoning by first-class mail at least 30 days prior to the hearing of the date, time and location of the hearing.