Chapter 17.20 SUBDIVISIONS AND SHORT SUBDIVISIONS This chapter is included in your selections. Sections: 17.20.010 Purpose. 17.20.020 Preliminary approval of subdivision. 17.20.030 Revisions of preliminary subdivisions. 17.20.040 Preliminary short subdivision – Approval time. 17.20.050 Limitations for short subdivisions. 17.20.060 Revisions of preliminary short subdivisions.