Prior to the approval of a final map, the subdivider shall have completed all improvements and satisfied all conditions imposed as conditions of approval under the provisions of this chapter or by law required for such subdivision. In the event that all improvements required or conditions imposed are not completed before the filing of the final map, the subdivider shall enter into a subdivision improvement agreement with the City Engineer, guaranteeing the installation of improvements in conformance with the tentative map and approved plans and specifications. The subdivision improvement agreement shall be secured by bonds, deposit, instrument of credit, or alternative form of security in the amount and type identified in CVMC 18.17.040 through 18.17.090, which security shall be approved by the City Attorney as to form and the City Engineer as to sufficiency. (Ord. 3153 § 2 (Exh. C), 2010).