(a) Classification of Subdivisions. Before any land is subdivided, the owner of the property proposed to be subdivided, or his authorized agent, shall apply for and secure approval of the proposed subdivision in accordance with the following procedures, which include two (2) principal steps for a minor subdivision and three (3) principal steps for a major subdivision:
(1) Minor subdivision.
A. Sketch plat.
B. Final subdivision plat.
(2) Major subdivision.
A. Sketch plat.
B. Preliminary plat.
C. Final subdivision plat.
(b) Official Submission Dates. For the purpose of these regulations, the date of filing of a sketch plat shall constitute its Official Submission Date on which the statutory period shall commence. For both major and minor subdivisions, the date of the meeting of the Planning Commission at which the public meeting or hearing on approval of a preliminary, or final subdivision plat, including any adjourned date thereof, is closed, shall constitute the Official Submission Date of the plat on which the statutory period required for formal approval, conditional approval or disapproval of the preliminary, or final subdivision plat shall commence to run.