Plans for improvements shall be prepared, signed, dated and stamped by a professional civil engineer registered in the State of Washington and shall be in accordance with the standard drawings and materials list and other specifications set forth by the City Engineer. Plans shall be submitted to the City Engineer, following preliminary plat approval, and no construction permit or approval shall be issued, and no construction activity shall commence relating to subdivision improvements until the plans required by this chapter have been approved and signed by the City Engineer. [Ord. 3398 § 2, 1999; Code 1970 § 26.32.010.]