All streets, drainage facilities, water distribution and fire protection facilities, sanitary sewer facilities and other required improvements shall be constructed in accordance with the provisions of this chapter and with the following specifications, as applicable: the Public Works Standard Specifications, City of Sebastopol Standard Details and Standard Specifications, and Caltrans Standard Specifications. In the event of a conflict between standards, the City Engineer shall determine which standard is the most appropriate. A copy of each such standard specifications is on file in the Public Works Department. No final map or parcel map shall be forwarded to the County Recorder’s Office until the subdivider either completes the required improvements or enters into an agreement with the City agreeing to do such work.