Chapter 17.50 HISTORIC PRESERVATION This chapter is included in your selections. Sections: 17.50.010 Purpose. 17.50.020 Definitions. 17.50.030 Aberdeen Historic Preservation Commission. 17.50.040 Register of Historic Places. 17.50.050 Review of changes to Historic Register properties. 17.50.060 Review and monitoring of properties for special property tax valuation. 17.50.070 Appeals.