The granting of final approval of the SUBDIVISION plan or LAND DEVELOPMENT, shall be contingent upon, the subdivider furnishing adequate bond or other satisfactory guaranty, according to requirements of the BOARD for the ultimate installation of the improvements listed and described in sections of this Article. All of the required improvements shall be made in full compliance with the specifications for each of the various units of work as required by the Township Engineer and the Municipal Authority Engineer when applicable, as well as state and county authorities, according to the nature of the improvement.