A final plan or final plat shall be submitted to the Secretary of the approving authority within three years after the date of preliminary approval or any authorized extension thereof as permitted by this section. The applicant shall submit to the Secretary the appropriate application(s), which includes the applications for any requested variance(s) and the Application Checklist as stated in Section 167, Exhibit A, with the items of information required therein; evidence of payment of fees in accordance with Section 180 of this Ordinance; and an acknowledgment signed by the applicant stating that the applicant is familiar with the procedure set forth herein for submitting and acting upon final major subdivision plats and final major site plans, and agrees to be bound by it. The Secretary shall process the application and shall issue an application number; said number shall appear on all papers, maps, plans or plats and other documents submitted in conjunction with the application.