Chapter 20.440 INDUSTRIAL DISTRICTS Revised Amended This chapter is included in your selections. Sections: 20.440.010 Purpose. 20.440.020 List of Zoning Districts. Revised 20.440.025 Industrial Zone Function and Location Criteria. 20.440.030 Uses. Amended Revised 20.440.040 Development Standards. Revised 20.440.050 Additional OCI Development Standards.