Chapter 20.430 COMMERCIAL AND MIXED USE DISTRICTS Search within This This chapter is included in your selections. Sections: 20.430.010 Purpose. 20.430.020 List of Zoning Districts. 20.430.025 Commercial Zone Function and Location Criteria. 20.430.030 Uses. 20.430.040 Development Standards. 20.430.050 Special Limitations on Uses. 20.430.060 Mixed Use Standards and District. 20.430.070 Waterfront Mixed Use (WX) District.