As a condition of final approval of a subdivision plan or approval or recommendation on a Development Plan Review application, the Board shall require the applicant to demonstrate that all of the infrastructure and landscape improvements required by these Rules and Regulations have been satisfactorily completed and installed, or to guarantee that such improvements will be satisfactorily completed and installed within the time period established by these Rules and Regulations, in which case the Board shall require the applicant to file a bond, surety or other security acceptable to the Finance Director. Unless security is posted, all required improvements must be completed prior to the recording of the final plan in the case of a subdivision or land development project, and prior to the issuance of a Certificate of Occupancy in the case of a project that has gone through the Development Plan Review process. The Board shall also require a maintenance bond for such improvements pursuant to these Rules and Regulations.