Before the final approval or disapproval of the subdivision plan or plat by the board
of county commissioners, the board of county commissioners shall hold a public hearing
or hearings, with written notice of the time, place and date of the hearing to the
applicant and due public notice published once in a newspaper of general circulation
in the county at least seven (7) days before the hearing and in addition shall give
notice by United States mail, postage prepaid, at least seven (7) days prior to the
date of the hearing to abutting property owners at their last known addresses of the
time, place and date of the hearing. The testimony of witnesses in support of or in
opposition to the proposed plan or plat shall be heard and the board of county commissioners
may receive and consider other evidence. The chairman of the board of county commissioners
or in his absence the acting chairman may administer oaths and compel the attendance
of witnesses. Substantial compliance with the requirements for notice in this article
shall be sufficient.