All subdivisions are reviewed as an administrative approval under WMC 16.12.020. No subdivision of land may be given final approval until the planner has certified that requirements of this title and/or other ordinances of the city have been satisfied and that guarantees satisfactory to the city have been provided for all improvements required as a condition of approval of the subdivision plat. The city shall provide the borough with a copy of all conditions imposed on the permit. To ensure the installation of the on- and off-site required improvements the developer shall guarantee the installation thereof by one or a combination of the methods specified in this title. The guarantee must be approved as to method and form by the city attorney and engineer. (Prior code § 16.43.804)